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Finding the Fourth Proportional to 108,487.87, 149,711.58 and 60,742.92

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Solution

The fourth proportional to 108,487.87, 149,711.58 and 60,742.92 is: 83,824.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,487.87 : 149,711.58 = 60,742.92 : x
  2. Step 2: Convert to fraction form
    108,487.87/149,711.58 = 60,742.92/x
  3. Step 3: Cross multiply
    108,487.87x = 149,711.58 × 60,742.92
  4. Step 4: Simplify right side
    108,487.87x = 9,093,918,527.01
  5. Step 5: Solve for x
    x = 9,093,918,527.01/108,487.87
  6. Step 6: Final answer
    x = 83,824.29

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1.5x scale

Why These Related Problems?

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