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Finding the Fourth Proportional to 148,963.53, 205,635.94 and 88,553.73

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Solution

The fourth proportional to 148,963.53, 205,635.94 and 88,553.73 is: 122,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,963.53 : 205,635.94 = 88,553.73 : x
  2. Step 2: Convert to fraction form
    148,963.53/205,635.94 = 88,553.73/x
  3. Step 3: Cross multiply
    148,963.53x = 205,635.94 × 88,553.73
  4. Step 4: Simplify right side
    148,963.53x = 18,209,829,287.67
  5. Step 5: Solve for x
    x = 18,209,829,287.67/148,963.53
  6. Step 6: Final answer
    x = 122,243.54

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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.