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Finding the Fourth Proportional to 80,099.60, 120,149.50 and 32,714.69

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Solution

The fourth proportional to 80,099.60, 120,149.50 and 32,714.69 is: 49,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,099.60 : 120,149.50 = 32,714.69 : x
  2. Step 2: Convert to fraction form
    80,099.60/120,149.50 = 32,714.69/x
  3. Step 3: Cross multiply
    80,099.60x = 120,149.50 × 32,714.69
  4. Step 4: Simplify right side
    80,099.60x = 3,930,653,116.97
  5. Step 5: Solve for x
    x = 3,930,653,116.97/80,099.60
  6. Step 6: Final answer
    x = 49,072.07

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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.