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Finding the Third Proportional to 114.25 and 123

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Solution

The third proportional to 114.25 and 123 is: 132.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.25 : 123 = 123 : x
  2. Step 2: Convert to fraction form
    114.25/123 = 123/x
  3. Step 3: Cross multiply
    114.25x = 123 × 123
  4. Step 4: Simplify right side
    114.25x = 15,129
  5. Step 5: Solve for x
    x = 15,129/114.25
  6. Step 6: Final answer
    x = 132.42

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.