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Finding the Fourth Proportional to 80,246.70, 120,369.77 and 24,086.57

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Solution

The fourth proportional to 80,246.70, 120,369.77 and 24,086.57 is: 36,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,246.70 : 120,369.77 = 24,086.57 : x
  2. Step 2: Convert to fraction form
    80,246.70/120,369.77 = 24,086.57/x
  3. Step 3: Cross multiply
    80,246.70x = 120,369.77 × 24,086.57
  4. Step 4: Simplify right side
    80,246.70x = 2,899,294,168.71
  5. Step 5: Solve for x
    x = 2,899,294,168.71/80,246.70
  6. Step 6: Final answer
    x = 36,129.76

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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.