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Finding the Third Proportional to 166.50 and 357

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Solution

The third proportional to 166.50 and 357 is: 765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.50 : 357 = 357 : x
  2. Step 2: Convert to fraction form
    166.50/357 = 357/x
  3. Step 3: Cross multiply
    166.50x = 357 × 357
  4. Step 4: Simplify right side
    166.50x = 127,449
  5. Step 5: Solve for x
    x = 127,449/166.50
  6. Step 6: Final answer
    x = 765.46

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.