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Finding the Fourth Proportional to 87,596.91, 120,892.70 and 53,627.87

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Solution

The fourth proportional to 87,596.91, 120,892.70 and 53,627.87 is: 74,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,596.91 : 120,892.70 = 53,627.87 : x
  2. Step 2: Convert to fraction form
    87,596.91/120,892.70 = 53,627.87/x
  3. Step 3: Cross multiply
    87,596.91x = 120,892.70 × 53,627.87
  4. Step 4: Simplify right side
    87,596.91x = 6,483,218,435.85
  5. Step 5: Solve for x
    x = 6,483,218,435.85/87,596.91
  6. Step 6: Final answer
    x = 74,011.95

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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.