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Finding the Fourth Proportional to 498,649.64, 747,974.45 and 124,672.64

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Solution

The fourth proportional to 498,649.64, 747,974.45 and 124,672.64 is: 187,008.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,649.64 : 747,974.45 = 124,672.64 : x
  2. Step 2: Convert to fraction form
    498,649.64/747,974.45 = 124,672.64/x
  3. Step 3: Cross multiply
    498,649.64x = 747,974.45 × 124,672.64
  4. Step 4: Simplify right side
    498,649.64x = 93,251,945,905.86
  5. Step 5: Solve for x
    x = 93,251,945,905.86/498,649.64
  6. Step 6: Final answer
    x = 187,008.95

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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.