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Finding the Fourth Proportional to 108,738.49, 150,022.96 and 65,731.14

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Solution

The fourth proportional to 108,738.49, 150,022.96 and 65,731.14 is: 90,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,738.49 : 150,022.96 = 65,731.14 : x
  2. Step 2: Convert to fraction form
    108,738.49/150,022.96 = 65,731.14/x
  3. Step 3: Cross multiply
    108,738.49x = 150,022.96 × 65,731.14
  4. Step 4: Simplify right side
    108,738.49x = 9,861,180,186.97
  5. Step 5: Solve for x
    x = 9,861,180,186.97/108,738.49
  6. Step 6: Final answer
    x = 90,687.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.