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Finding the Third Proportional to 110.88 and 124.75

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Solution

The third proportional to 110.88 and 124.75 is: 140.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.88 : 124.75 = 124.75 : x
  2. Step 2: Convert to fraction form
    110.88/124.75 = 124.75/x
  3. Step 3: Cross multiply
    110.88x = 124.75 × 124.75
  4. Step 4: Simplify right side
    110.88x = 15,562.56
  5. Step 5: Solve for x
    x = 15,562.56/110.88
  6. Step 6: Final answer
    x = 140.36

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.