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Finding the Fourth Proportional to 198,251.90, 273,587.90 and 107,607.89

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Solution

The fourth proportional to 198,251.90, 273,587.90 and 107,607.89 is: 148,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,251.90 : 273,587.90 = 107,607.89 : x
  2. Step 2: Convert to fraction form
    198,251.90/273,587.90 = 107,607.89/x
  3. Step 3: Cross multiply
    198,251.90x = 273,587.90 × 107,607.89
  4. Step 4: Simplify right side
    198,251.90x = 29,440,216,648.53
  5. Step 5: Solve for x
    x = 29,440,216,648.53/198,251.90
  6. Step 6: Final answer
    x = 148,499.04

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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.