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Finding the Fourth Proportional to 157,793.92, 217,747.42 and 89,810.68

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Solution

The fourth proportional to 157,793.92, 217,747.42 and 89,810.68 is: 123,934.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,793.92 : 217,747.42 = 89,810.68 : x
  2. Step 2: Convert to fraction form
    157,793.92/217,747.42 = 89,810.68/x
  3. Step 3: Cross multiply
    157,793.92x = 217,747.42 × 89,810.68
  4. Step 4: Simplify right side
    157,793.92x = 19,556,044,615.43
  5. Step 5: Solve for x
    x = 19,556,044,615.43/157,793.92
  6. Step 6: Final answer
    x = 123,934.08

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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.