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Finding the Fourth Proportional to 80,542.67, 120,767.69 and 33,190.44

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Solution

The fourth proportional to 80,542.67, 120,767.69 and 33,190.44 is: 49,766.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,542.67 : 120,767.69 = 33,190.44 : x
  2. Step 2: Convert to fraction form
    80,542.67/120,767.69 = 33,190.44/x
  3. Step 3: Cross multiply
    80,542.67x = 120,767.69 × 33,190.44
  4. Step 4: Simplify right side
    80,542.67x = 4,008,332,851.86
  5. Step 5: Solve for x
    x = 4,008,332,851.86/80,542.67
  6. Step 6: Final answer
    x = 49,766.58

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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.