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Finding the Fourth Proportional to 363,034.76, 544,531.31 and 138,417.86

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Solution

The fourth proportional to 363,034.76, 544,531.31 and 138,417.86 is: 207,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,034.76 : 544,531.31 = 138,417.86 : x
  2. Step 2: Convert to fraction form
    363,034.76/544,531.31 = 138,417.86/x
  3. Step 3: Cross multiply
    363,034.76x = 544,531.31 × 138,417.86
  4. Step 4: Simplify right side
    363,034.76x = 75,372,859,821.50
  5. Step 5: Solve for x
    x = 75,372,859,821.50/363,034.76
  6. Step 6: Final answer
    x = 207,618.85

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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.