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Finding the Fourth Proportional to 110.93, 166.41 and 42.44

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Solution

The fourth proportional to 110.93, 166.41 and 42.44 is: 63.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.93 : 166.41 = 42.44 : x
  2. Step 2: Convert to fraction form
    110.93/166.41 = 42.44/x
  3. Step 3: Cross multiply
    110.93x = 166.41 × 42.44
  4. Step 4: Simplify right side
    110.93x = 7,061.61
  5. Step 5: Solve for x
    x = 7,061.61/110.93
  6. Step 6: Final answer
    x = 63.66

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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.