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Finding the Third Proportional to 166 and 242.88

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Solution

The third proportional to 166 and 242.88 is: 355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    166 : 242.88 = 242.88 : x
  2. Step 2: Convert to fraction form
    166/242.88 = 242.88/x
  3. Step 3: Cross multiply
    166x = 242.88 × 242.88
  4. Step 4: Simplify right side
    166x = 58,988.27
  5. Step 5: Solve for x
    x = 58,988.27/166
  6. Step 6: Final answer
    x = 355.35

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.