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Finding the Fourth Proportional to 198,992.92, 274,601.04 and 108,348.62

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Solution

The fourth proportional to 198,992.92, 274,601.04 and 108,348.62 is: 149,516.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,992.92 : 274,601.04 = 108,348.62 : x
  2. Step 2: Convert to fraction form
    198,992.92/274,601.04 = 108,348.62/x
  3. Step 3: Cross multiply
    198,992.92x = 274,601.04 × 108,348.62
  4. Step 4: Simplify right side
    198,992.92x = 29,752,643,734.56
  5. Step 5: Solve for x
    x = 29,752,643,734.56/198,992.92
  6. Step 6: Final answer
    x = 149,516.09

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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.