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Finding the Third Proportional to 118 and 250.75

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Solution

The third proportional to 118 and 250.75 is: 532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118 : 250.75 = 250.75 : x
  2. Step 2: Convert to fraction form
    118/250.75 = 250.75/x
  3. Step 3: Cross multiply
    118x = 250.75 × 250.75
  4. Step 4: Simplify right side
    118x = 62,875.56
  5. Step 5: Solve for x
    x = 62,875.56/118
  6. Step 6: Final answer
    x = 532.84

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.