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Finding the Third Proportional to 174.25 and 243.75

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Solution

The third proportional to 174.25 and 243.75 is: 340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.25 : 243.75 = 243.75 : x
  2. Step 2: Convert to fraction form
    174.25/243.75 = 243.75/x
  3. Step 3: Cross multiply
    174.25x = 243.75 × 243.75
  4. Step 4: Simplify right side
    174.25x = 59,414.06
  5. Step 5: Solve for x
    x = 59,414.06/174.25
  6. Step 6: Final answer
    x = 340.97

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.