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Finding the Third Proportional to 114 and 191.25

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Solution

The third proportional to 114 and 191.25 is: 320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114 : 191.25 = 191.25 : x
  2. Step 2: Convert to fraction form
    114/191.25 = 191.25/x
  3. Step 3: Cross multiply
    114x = 191.25 × 191.25
  4. Step 4: Simplify right side
    114x = 36,576.56
  5. Step 5: Solve for x
    x = 36,576.56/114
  6. Step 6: Final answer
    x = 320.85

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.