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Finding the Fourth Proportional to 381,600.78, 572,279.62 and 125,373.86

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Solution

The fourth proportional to 381,600.78, 572,279.62 and 125,373.86 is: 188,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,600.78 : 572,279.62 = 125,373.86 : x
  2. Step 2: Convert to fraction form
    381,600.78/572,279.62 = 125,373.86/x
  3. Step 3: Cross multiply
    381,600.78x = 572,279.62 × 125,373.86
  4. Step 4: Simplify right side
    381,600.78x = 71,748,904,958.73
  5. Step 5: Solve for x
    x = 71,748,904,958.73/381,600.78
  6. Step 6: Final answer
    x = 188,020.86

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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.