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Finding the Fourth Proportional to 87,524.70, 120,659.67 and 62,295.90

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Solution

The fourth proportional to 87,524.70, 120,659.67 and 62,295.90 is: 85,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,524.70 : 120,659.67 = 62,295.90 : x
  2. Step 2: Convert to fraction form
    87,524.70/120,659.67 = 62,295.90/x
  3. Step 3: Cross multiply
    87,524.70x = 120,659.67 × 62,295.90
  4. Step 4: Simplify right side
    87,524.70x = 7,516,602,736.35
  5. Step 5: Solve for x
    x = 7,516,602,736.35/87,524.70
  6. Step 6: Final answer
    x = 85,879.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.