Step 1: The man sells \(\frac{3}{4}\) of \(\frac{2}{3}\) of the business. So, the total portion of the business he sold is:
\[ \frac{3}{4} \times \frac{2}{3} = \frac{1}{2} \]
Step 2: The value of the portion sold is Rs. 75,000, which is half of the total value of the business. So, the total value of the business is:
\[ 2 \times 75000 = 150000 \]