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Finding the Fourth Proportional to 157,793.96, 217,726.86 and 89,806.95

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Solution

The fourth proportional to 157,793.96, 217,726.86 and 89,806.95 is: 123,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,793.96 : 217,726.86 = 89,806.95 : x
  2. Step 2: Convert to fraction form
    157,793.96/217,726.86 = 89,806.95/x
  3. Step 3: Cross multiply
    157,793.96x = 217,726.86 × 89,806.95
  4. Step 4: Simplify right side
    157,793.96x = 19,553,385,229.68
  5. Step 5: Solve for x
    x = 19,553,385,229.68/157,793.96
  6. Step 6: Final answer
    x = 123,917.20

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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.