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Finding the Third Proportional to 107.09 and 160.38

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Solution

The third proportional to 107.09 and 160.38 is: 240.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.09 : 160.38 = 160.38 : x
  2. Step 2: Convert to fraction form
    107.09/160.38 = 160.38/x
  3. Step 3: Cross multiply
    107.09x = 160.38 × 160.38
  4. Step 4: Simplify right side
    107.09x = 25,722.65
  5. Step 5: Solve for x
    x = 25,722.65/107.09
  6. Step 6: Final answer
    x = 240.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.