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Finding the Third Proportional to 186.50 and 248.50

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Solution

The third proportional to 186.50 and 248.50 is: 331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.50 : 248.50 = 248.50 : x
  2. Step 2: Convert to fraction form
    186.50/248.50 = 248.50/x
  3. Step 3: Cross multiply
    186.50x = 248.50 × 248.50
  4. Step 4: Simplify right side
    186.50x = 61,752.25
  5. Step 5: Solve for x
    x = 61,752.25/186.50
  6. Step 6: Final answer
    x = 331.11

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.