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Finding the Fourth Proportional to 132, 198.07 and 93.73

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Solution

The fourth proportional to 132, 198.07 and 93.73 is: 140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132 : 198.07 = 93.73 : x
  2. Step 2: Convert to fraction form
    132/198.07 = 93.73/x
  3. Step 3: Cross multiply
    132x = 198.07 × 93.73
  4. Step 4: Simplify right side
    132x = 18,565.10
  5. Step 5: Solve for x
    x = 18,565.10/132
  6. Step 6: Final answer
    x = 140.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.