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Finding the Fourth Proportional to 132.36, 198.44 and 41

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Solution

The fourth proportional to 132.36, 198.44 and 41 is: 61.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.36 : 198.44 = 41 : x
  2. Step 2: Convert to fraction form
    132.36/198.44 = 41/x
  3. Step 3: Cross multiply
    132.36x = 198.44 × 41
  4. Step 4: Simplify right side
    132.36x = 8,135.84
  5. Step 5: Solve for x
    x = 8,135.84/132.36
  6. Step 6: Final answer
    x = 61.47

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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.