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Finding the Fourth Proportional to 372,849.48, 514,951.43 and 251,780.60

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Solution

The fourth proportional to 372,849.48, 514,951.43 and 251,780.60 is: 347,740.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,849.48 : 514,951.43 = 251,780.60 : x
  2. Step 2: Convert to fraction form
    372,849.48/514,951.43 = 251,780.60/x
  3. Step 3: Cross multiply
    372,849.48x = 514,951.43 × 251,780.60
  4. Step 4: Simplify right side
    372,849.48x = 129,654,780,044.73
  5. Step 5: Solve for x
    x = 129,654,780,044.73/372,849.48
  6. Step 6: Final answer
    x = 347,740.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.