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Finding the Third Proportional to 65,917 and 102,153

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Solution

The third proportional to 65,917 and 102,153 is: 158,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917 : 102,153 = 102,153 : x
  2. Step 2: Convert to fraction form
    65,917/102,153 = 102,153/x
  3. Step 3: Cross multiply
    65,917x = 102,153 × 102,153
  4. Step 4: Simplify right side
    65,917x = 10,435,235,409
  5. Step 5: Solve for x
    x = 10,435,235,409/65,917
  6. Step 6: Final answer
    x = 158,308.71

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.