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Finding the Fourth Proportional to 157,572.53, 217,449.32 and 85,951.92

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Solution

The fourth proportional to 157,572.53, 217,449.32 and 85,951.92 is: 118,613.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,572.53 : 217,449.32 = 85,951.92 : x
  2. Step 2: Convert to fraction form
    157,572.53/217,449.32 = 85,951.92/x
  3. Step 3: Cross multiply
    157,572.53x = 217,449.32 × 85,951.92
  4. Step 4: Simplify right side
    157,572.53x = 18,690,186,556.69
  5. Step 5: Solve for x
    x = 18,690,186,556.69/157,572.53
  6. Step 6: Final answer
    x = 118,613.23

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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.