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Finding the Third Proportional to 186.25 and 203

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Solution

The third proportional to 186.25 and 203 is: 221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.25 : 203 = 203 : x
  2. Step 2: Convert to fraction form
    186.25/203 = 203/x
  3. Step 3: Cross multiply
    186.25x = 203 × 203
  4. Step 4: Simplify right side
    186.25x = 41,209
  5. Step 5: Solve for x
    x = 41,209/186.25
  6. Step 6: Final answer
    x = 221.26

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.