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Finding the Third Proportional to 124.75 and 162.13

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Solution

The third proportional to 124.75 and 162.13 is: 210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.75 : 162.13 = 162.13 : x
  2. Step 2: Convert to fraction form
    124.75/162.13 = 162.13/x
  3. Step 3: Cross multiply
    124.75x = 162.13 × 162.13
  4. Step 4: Simplify right side
    124.75x = 26,284.52
  5. Step 5: Solve for x
    x = 26,284.52/124.75
  6. Step 6: Final answer
    x = 210.70

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.