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Finding the Fourth Proportional to 198,672.92, 274,169.92 and 108,029.87

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Solution

The fourth proportional to 198,672.92, 274,169.92 and 108,029.87 is: 149,081.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,672.92 : 274,169.92 = 108,029.87 : x
  2. Step 2: Convert to fraction form
    198,672.92/274,169.92 = 108,029.87/x
  3. Step 3: Cross multiply
    198,672.92x = 274,169.92 × 108,029.87
  4. Step 4: Simplify right side
    198,672.92x = 29,618,540,815.51
  5. Step 5: Solve for x
    x = 29,618,540,815.51/198,672.92
  6. Step 6: Final answer
    x = 149,081.92

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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.