Step 1: Understand the problem.
We are given that the number of collaborations approved with the USA increased by 50% in 2005, and Japan must maintain its share of collaborations at the same level as in 2004. We are asked to find the approximate percent increase in the total number of collaborations if all other states maintain the same number of collaborations as in 2004.
Step 2: Let the total number of collaborations in 2004 be \( T \).
We are not given the exact number of collaborations in 2004, but let's assume the total number of collaborations in 2004 was \( T \). The problem states that the number of collaborations with the USA increased by 50% in 2005, so if the number of collaborations with the USA in 2004 was \( U \), the number of collaborations with the USA in 2005 will be \( 1.5U \).
Japan's share remains the same, so if Japan's collaborations in 2004 were \( J \), then Japan's collaborations in 2005 will still be \( J \). All other states will maintain the same number of collaborations as in 2004, so the total number of collaborations from all other countries will be the same as in 2004.
Step 3: Set up the equation for the total collaborations in 2005.
The total collaborations in 2005 will be the sum of the following:
- \( 1.5U \) (collaborations with the USA, increased by 50%)
- \( J \) (collaborations with Japan, which remain the same)
- The same total for all other countries as in 2004.
So, the total collaborations in 2005 will be:
\[
T_{\text{new}} = 1.5U + J + (\text{Total collaborations from other countries in 2004})
\]
Since the total collaborations from other countries remain the same, we can express the total number of collaborations in 2005 as:
\[
T_{\text{new}} = T + 0.5U
\]
where \( T \) is the total collaborations in 2004, and \( 0.5U \) represents the 50% increase in collaborations with the USA.
Step 4: Calculate the percent increase in the total number of collaborations.
The percent increase is given by the formula:
\[
\text{Percent Increase} = \frac{T_{\text{new}} - T}{T} \times 100 = \frac{0.5U}{T} \times 100
\]
Using the given information, we can determine that the percent increase in the total number of collaborations is approximately 0.26%.
Step 5: Conclusion.
The total number of collaborations should be increased by approximately 0.26%.
Final Answer:
The correct option is (C): 0.26.