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Finding the Fourth Proportional to 80,569.04, 120,812.04 and 36,157.73

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Solution

The fourth proportional to 80,569.04, 120,812.04 and 36,157.73 is: 54,217.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,569.04 : 120,812.04 = 36,157.73 : x
  2. Step 2: Convert to fraction form
    80,569.04/120,812.04 = 36,157.73/x
  3. Step 3: Cross multiply
    80,569.04x = 120,812.04 × 36,157.73
  4. Step 4: Simplify right side
    80,569.04x = 4,368,288,519.01
  5. Step 5: Solve for x
    x = 4,368,288,519.01/80,569.04
  6. Step 6: Final answer
    x = 54,217.96

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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.