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Finding the Fourth Proportional to 115,519.97, 173,286.11 and 36,640.28

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Solution

The fourth proportional to 115,519.97, 173,286.11 and 36,640.28 is: 54,962.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,519.97 : 173,286.11 = 36,640.28 : x
  2. Step 2: Convert to fraction form
    115,519.97/173,286.11 = 36,640.28/x
  3. Step 3: Cross multiply
    115,519.97x = 173,286.11 × 36,640.28
  4. Step 4: Simplify right side
    115,519.97x = 6,349,250,815.68
  5. Step 5: Solve for x
    x = 6,349,250,815.68/115,519.97
  6. Step 6: Final answer
    x = 54,962.37

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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.