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Finding the Fourth Proportional to 80,125.53, 120,143.93 and 32,773.88

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Solution

The fourth proportional to 80,125.53, 120,143.93 and 32,773.88 is: 49,142.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,125.53 : 120,143.93 = 32,773.88 : x
  2. Step 2: Convert to fraction form
    80,125.53/120,143.93 = 32,773.88/x
  3. Step 3: Cross multiply
    80,125.53x = 120,143.93 × 32,773.88
  4. Step 4: Simplify right side
    80,125.53x = 3,937,581,979.96
  5. Step 5: Solve for x
    x = 3,937,581,979.96/80,125.53
  6. Step 6: Final answer
    x = 49,142.66

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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.