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Finding the Third Proportional to 188 and 247.75

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Solution

The third proportional to 188 and 247.75 is: 326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188 : 247.75 = 247.75 : x
  2. Step 2: Convert to fraction form
    188/247.75 = 247.75/x
  3. Step 3: Cross multiply
    188x = 247.75 × 247.75
  4. Step 4: Simplify right side
    188x = 61,380.06
  5. Step 5: Solve for x
    x = 61,380.06/188
  6. Step 6: Final answer
    x = 326.49

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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.