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Finding the Fourth Proportional to 87,592, 120,877.10 and 49,866.25

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Solution

The fourth proportional to 87,592, 120,877.10 and 49,866.25 is: 68,815.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,592 : 120,877.10 = 49,866.25 : x
  2. Step 2: Convert to fraction form
    87,592/120,877.10 = 49,866.25/x
  3. Step 3: Cross multiply
    87,592x = 120,877.10 × 49,866.25
  4. Step 4: Simplify right side
    87,592x = 6,027,687,687.88
  5. Step 5: Solve for x
    x = 6,027,687,687.88/87,592
  6. Step 6: Final answer
    x = 68,815.50

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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.