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Finding the Fourth Proportional to 80,591.55, 120,845.81 and 36,180.24

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Solution

The fourth proportional to 80,591.55, 120,845.81 and 36,180.24 is: 54,251.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,591.55 : 120,845.81 = 36,180.24 : x
  2. Step 2: Convert to fraction form
    80,591.55/120,845.81 = 36,180.24/x
  3. Step 3: Cross multiply
    80,591.55x = 120,845.81 × 36,180.24
  4. Step 4: Simplify right side
    80,591.55x = 4,372,230,227.89
  5. Step 5: Solve for x
    x = 4,372,230,227.89/80,591.55
  6. Step 6: Final answer
    x = 54,251.72

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1.5x scale

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.