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Finding the Fourth Proportional to 87,506.73, 120,750.05 and 49,265.59

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Solution

The fourth proportional to 87,506.73, 120,750.05 and 49,265.59 is: 67,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,506.73 : 120,750.05 = 49,265.59 : x
  2. Step 2: Convert to fraction form
    87,506.73/120,750.05 = 49,265.59/x
  3. Step 3: Cross multiply
    87,506.73x = 120,750.05 × 49,265.59
  4. Step 4: Simplify right side
    87,506.73x = 5,948,821,605.70
  5. Step 5: Solve for x
    x = 5,948,821,605.70/87,506.73
  6. Step 6: Final answer
    x = 67,981.30

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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.