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Finding the Third Proportional to 191.50 and 225.75

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Solution

The third proportional to 191.50 and 225.75 is: 266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.50 : 225.75 = 225.75 : x
  2. Step 2: Convert to fraction form
    191.50/225.75 = 225.75/x
  3. Step 3: Cross multiply
    191.50x = 225.75 × 225.75
  4. Step 4: Simplify right side
    191.50x = 50,963.06
  5. Step 5: Solve for x
    x = 50,963.06/191.50
  6. Step 6: Final answer
    x = 266.13

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.