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Finding the Fourth Proportional to 148,463.63, 204,880.37 and 80,480.73

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Solution

The fourth proportional to 148,463.63, 204,880.37 and 80,480.73 is: 111,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,463.63 : 204,880.37 = 80,480.73 : x
  2. Step 2: Convert to fraction form
    148,463.63/204,880.37 = 80,480.73/x
  3. Step 3: Cross multiply
    148,463.63x = 204,880.37 × 80,480.73
  4. Step 4: Simplify right side
    148,463.63x = 16,488,921,337.87
  5. Step 5: Solve for x
    x = 16,488,921,337.87/148,463.63
  6. Step 6: Final answer
    x = 111,063.71

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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.