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Finding the Fourth Proportional to 83,512.33, 125,239.33 and 39,159.97

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Solution

The fourth proportional to 83,512.33, 125,239.33 and 39,159.97 is: 58,726.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,512.33 : 125,239.33 = 39,159.97 : x
  2. Step 2: Convert to fraction form
    83,512.33/125,239.33 = 39,159.97/x
  3. Step 3: Cross multiply
    83,512.33x = 125,239.33 × 39,159.97
  4. Step 4: Simplify right side
    83,512.33x = 4,904,368,405.62
  5. Step 5: Solve for x
    x = 4,904,368,405.62/83,512.33
  6. Step 6: Final answer
    x = 58,726.28

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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.