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Finding the Fourth Proportional to 499,123.91, 748,603.85 and 179,209.55

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Solution

The fourth proportional to 499,123.91, 748,603.85 and 179,209.55 is: 268,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,123.91 : 748,603.85 = 179,209.55 : x
  2. Step 2: Convert to fraction form
    499,123.91/748,603.85 = 179,209.55/x
  3. Step 3: Cross multiply
    499,123.91x = 748,603.85 × 179,209.55
  4. Step 4: Simplify right side
    499,123.91x = 134,156,954,447.70
  5. Step 5: Solve for x
    x = 134,156,954,447.70/499,123.91
  6. Step 6: Final answer
    x = 268,784.87

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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.