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Finding the Third Proportional to 191.75 and 244.75

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Solution

The third proportional to 191.75 and 244.75 is: 312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.75 : 244.75 = 244.75 : x
  2. Step 2: Convert to fraction form
    191.75/244.75 = 244.75/x
  3. Step 3: Cross multiply
    191.75x = 244.75 × 244.75
  4. Step 4: Simplify right side
    191.75x = 59,902.56
  5. Step 5: Solve for x
    x = 59,902.56/191.75
  6. Step 6: Final answer
    x = 312.40

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.