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Finding the Fourth Proportional to 574,089.92, 861,067.20 and 153,398.24

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Solution

The fourth proportional to 574,089.92, 861,067.20 and 153,398.24 is: 230,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,089.92 : 861,067.20 = 153,398.24 : x
  2. Step 2: Convert to fraction form
    574,089.92/861,067.20 = 153,398.24/x
  3. Step 3: Cross multiply
    574,089.92x = 861,067.20 × 153,398.24
  4. Step 4: Simplify right side
    574,089.92x = 132,086,193,001.73
  5. Step 5: Solve for x
    x = 132,086,193,001.73/574,089.92
  6. Step 6: Final answer
    x = 230,079.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.