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Finding the Fourth Proportional to 132.46, 198.49 and 94.02

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Solution

The fourth proportional to 132.46, 198.49 and 94.02 is: 140.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.46 : 198.49 = 94.02 : x
  2. Step 2: Convert to fraction form
    132.46/198.49 = 94.02/x
  3. Step 3: Cross multiply
    132.46x = 198.49 × 94.02
  4. Step 4: Simplify right side
    132.46x = 18,662.03
  5. Step 5: Solve for x
    x = 18,662.03/132.46
  6. Step 6: Final answer
    x = 140.89

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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.