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Finding the Fourth Proportional to 80,624.46, 120,895.21 and 36,213.11

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Solution

The fourth proportional to 80,624.46, 120,895.21 and 36,213.11 is: 54,301.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,624.46 : 120,895.21 = 36,213.11 : x
  2. Step 2: Convert to fraction form
    80,624.46/120,895.21 = 36,213.11/x
  3. Step 3: Cross multiply
    80,624.46x = 120,895.21 × 36,213.11
  4. Step 4: Simplify right side
    80,624.46x = 4,377,991,538.20
  5. Step 5: Solve for x
    x = 4,377,991,538.20/80,624.46
  6. Step 6: Final answer
    x = 54,301.03

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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.