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Finding the Fourth Proportional to 80,092.99, 120,336.45 and 60,311.53

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Solution

The fourth proportional to 80,092.99, 120,336.45 and 60,311.53 is: 90,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,092.99 : 120,336.45 = 60,311.53 : x
  2. Step 2: Convert to fraction form
    80,092.99/120,336.45 = 60,311.53/x
  3. Step 3: Cross multiply
    80,092.99x = 120,336.45 × 60,311.53
  4. Step 4: Simplify right side
    80,092.99x = 7,257,675,414.27
  5. Step 5: Solve for x
    x = 7,257,675,414.27/80,092.99
  6. Step 6: Final answer
    x = 90,615.61

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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.