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Finding the Fourth Proportional to 132.26, 182.52 and 74.04

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Solution

The fourth proportional to 132.26, 182.52 and 74.04 is: 102.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.26 : 182.52 = 74.04 : x
  2. Step 2: Convert to fraction form
    132.26/182.52 = 74.04/x
  3. Step 3: Cross multiply
    132.26x = 182.52 × 74.04
  4. Step 4: Simplify right side
    132.26x = 13,513.30
  5. Step 5: Solve for x
    x = 13,513.30/132.26
  6. Step 6: Final answer
    x = 102.17

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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.