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Finding the Fourth Proportional to 261,631.60, 391,572.60 and 182,899.60

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Solution

The fourth proportional to 261,631.60, 391,572.60 and 182,899.60 is: 273,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,631.60 : 391,572.60 = 182,899.60 : x
  2. Step 2: Convert to fraction form
    261,631.60/391,572.60 = 182,899.60/x
  3. Step 3: Cross multiply
    261,631.60x = 391,572.60 × 182,899.60
  4. Step 4: Simplify right side
    261,631.60x = 71,618,471,910.96
  5. Step 5: Solve for x
    x = 71,618,471,910.96/261,631.60
  6. Step 6: Final answer
    x = 273,737.85

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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.