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Finding the Third Proportional to 188.50 and 249

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Solution

The third proportional to 188.50 and 249 is: 328.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.50 : 249 = 249 : x
  2. Step 2: Convert to fraction form
    188.50/249 = 249/x
  3. Step 3: Cross multiply
    188.50x = 249 × 249
  4. Step 4: Simplify right side
    188.50x = 62,001
  5. Step 5: Solve for x
    x = 62,001/188.50
  6. Step 6: Final answer
    x = 328.92

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.