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Finding the Fourth Proportional to 132.73, 198.74 and 94

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Solution

The fourth proportional to 132.73, 198.74 and 94 is: 140.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.73 : 198.74 = 94 : x
  2. Step 2: Convert to fraction form
    132.73/198.74 = 94/x
  3. Step 3: Cross multiply
    132.73x = 198.74 × 94
  4. Step 4: Simplify right side
    132.73x = 18,681.56
  5. Step 5: Solve for x
    x = 18,681.56/132.73
  6. Step 6: Final answer
    x = 140.75

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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.