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Finding the Fourth Proportional to 80,372.60, 120,530.88 and 32,974.04

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Solution

The fourth proportional to 80,372.60, 120,530.88 and 32,974.04 is: 49,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,372.60 : 120,530.88 = 32,974.04 : x
  2. Step 2: Convert to fraction form
    80,372.60/120,530.88 = 32,974.04/x
  3. Step 3: Cross multiply
    80,372.60x = 120,530.88 × 32,974.04
  4. Step 4: Simplify right side
    80,372.60x = 3,974,390,058.36
  5. Step 5: Solve for x
    x = 3,974,390,058.36/80,372.60
  6. Step 6: Final answer
    x = 49,449.56

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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.