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Finding the Third Proportional to 106.75 and 176.13

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Solution

The third proportional to 106.75 and 176.13 is: 290.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.75 : 176.13 = 176.13 : x
  2. Step 2: Convert to fraction form
    106.75/176.13 = 176.13/x
  3. Step 3: Cross multiply
    106.75x = 176.13 × 176.13
  4. Step 4: Simplify right side
    106.75x = 31,020.02
  5. Step 5: Solve for x
    x = 31,020.02/106.75
  6. Step 6: Final answer
    x = 290.59

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.