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Finding the Fourth Proportional to 89.42, 134.04 and 41.27

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Solution

The fourth proportional to 89.42, 134.04 and 41.27 is: 61.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.42 : 134.04 = 41.27 : x
  2. Step 2: Convert to fraction form
    89.42/134.04 = 41.27/x
  3. Step 3: Cross multiply
    89.42x = 134.04 × 41.27
  4. Step 4: Simplify right side
    89.42x = 5,531.83
  5. Step 5: Solve for x
    x = 5,531.83/89.42
  6. Step 6: Final answer
    x = 61.86

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