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Finding the Third Proportional to 119.94 and 169.75

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Solution

The third proportional to 119.94 and 169.75 is: 240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.94 : 169.75 = 169.75 : x
  2. Step 2: Convert to fraction form
    119.94/169.75 = 169.75/x
  3. Step 3: Cross multiply
    119.94x = 169.75 × 169.75
  4. Step 4: Simplify right side
    119.94x = 28,815.06
  5. Step 5: Solve for x
    x = 28,815.06/119.94
  6. Step 6: Final answer
    x = 240.25

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.