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Finding the Fourth Proportional to 132.26, 198.04 and 116.88

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Solution

The fourth proportional to 132.26, 198.04 and 116.88 is: 175.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.26 : 198.04 = 116.88 : x
  2. Step 2: Convert to fraction form
    132.26/198.04 = 116.88/x
  3. Step 3: Cross multiply
    132.26x = 198.04 × 116.88
  4. Step 4: Simplify right side
    132.26x = 23,146.92
  5. Step 5: Solve for x
    x = 23,146.92/132.26
  6. Step 6: Final answer
    x = 175.01

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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.