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Finding the Fourth Proportional to 263,591.87, 363,742.40 and 156,171.83

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Solution

The fourth proportional to 263,591.87, 363,742.40 and 156,171.83 is: 215,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,591.87 : 363,742.40 = 156,171.83 : x
  2. Step 2: Convert to fraction form
    263,591.87/363,742.40 = 156,171.83/x
  3. Step 3: Cross multiply
    263,591.87x = 363,742.40 × 156,171.83
  4. Step 4: Simplify right side
    263,591.87x = 56,806,315,475.73
  5. Step 5: Solve for x
    x = 56,806,315,475.73/263,591.87
  6. Step 6: Final answer
    x = 215,508.60

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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.