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Finding the Fourth Proportional to 71,132.88, 98,160.15 and 43,921.14

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Solution

The fourth proportional to 71,132.88, 98,160.15 and 43,921.14 is: 60,609.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,132.88 : 98,160.15 = 43,921.14 : x
  2. Step 2: Convert to fraction form
    71,132.88/98,160.15 = 43,921.14/x
  3. Step 3: Cross multiply
    71,132.88x = 98,160.15 × 43,921.14
  4. Step 4: Simplify right side
    71,132.88x = 4,311,305,487.17
  5. Step 5: Solve for x
    x = 4,311,305,487.17/71,132.88
  6. Step 6: Final answer
    x = 60,609.18

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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.