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Finding the Fourth Proportional to 198,251.80, 273,587.76 and 107,607.78

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Solution

The fourth proportional to 198,251.80, 273,587.76 and 107,607.78 is: 148,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,251.80 : 273,587.76 = 107,607.78 : x
  2. Step 2: Convert to fraction form
    198,251.80/273,587.76 = 107,607.78/x
  3. Step 3: Cross multiply
    198,251.80x = 273,587.76 × 107,607.78
  4. Step 4: Simplify right side
    198,251.80x = 29,440,170,950.73
  5. Step 5: Solve for x
    x = 29,440,170,950.73/198,251.80
  6. Step 6: Final answer
    x = 148,498.89

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1.5x scale

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.