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Finding the Fourth Proportional to 425,304.52, 638,081.44 and 125,793.12

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Solution

The fourth proportional to 425,304.52, 638,081.44 and 125,793.12 is: 188,726.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,304.52 : 638,081.44 = 125,793.12 : x
  2. Step 2: Convert to fraction form
    425,304.52/638,081.44 = 125,793.12/x
  3. Step 3: Cross multiply
    425,304.52x = 638,081.44 × 125,793.12
  4. Step 4: Simplify right side
    425,304.52x = 80,266,255,151.69
  5. Step 5: Solve for x
    x = 80,266,255,151.69/425,304.52
  6. Step 6: Final answer
    x = 188,726.55

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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.