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Finding the Fourth Proportional to 68,791.52, 103,192.68 and 29,348.84

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Solution

The fourth proportional to 68,791.52, 103,192.68 and 29,348.84 is: 44,025.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,791.52 : 103,192.68 = 29,348.84 : x
  2. Step 2: Convert to fraction form
    68,791.52/103,192.68 = 29,348.84/x
  3. Step 3: Cross multiply
    68,791.52x = 103,192.68 × 29,348.84
  4. Step 4: Simplify right side
    68,791.52x = 3,028,585,454.49
  5. Step 5: Solve for x
    x = 3,028,585,454.49/68,791.52
  6. Step 6: Final answer
    x = 44,025.56

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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.