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Finding the Fourth Proportional to 83,438.52, 125,174.10 and 36,691.26

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Solution

The fourth proportional to 83,438.52, 125,174.10 and 36,691.26 is: 55,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,438.52 : 125,174.10 = 36,691.26 : x
  2. Step 2: Convert to fraction form
    83,438.52/125,174.10 = 36,691.26/x
  3. Step 3: Cross multiply
    83,438.52x = 125,174.10 × 36,691.26
  4. Step 4: Simplify right side
    83,438.52x = 4,592,795,448.37
  5. Step 5: Solve for x
    x = 4,592,795,448.37/83,438.52
  6. Step 6: Final answer
    x = 55,044.07

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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.