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Finding the Fourth Proportional to 157,545.68, 217,404.36 and 89,553.20

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Solution

The fourth proportional to 157,545.68, 217,404.36 and 89,553.20 is: 123,578.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,545.68 : 217,404.36 = 89,553.20 : x
  2. Step 2: Convert to fraction form
    157,545.68/217,404.36 = 89,553.20/x
  3. Step 3: Cross multiply
    157,545.68x = 217,404.36 × 89,553.20
  4. Step 4: Simplify right side
    157,545.68x = 19,469,255,044.93
  5. Step 5: Solve for x
    x = 19,469,255,044.93/157,545.68
  6. Step 6: Final answer
    x = 123,578.48

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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.