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Finding the Third Proportional to 92,158 and 138,589

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Solution

The third proportional to 92,158 and 138,589 is: 208,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,158 : 138,589 = 138,589 : x
  2. Step 2: Convert to fraction form
    92,158/138,589 = 138,589/x
  3. Step 3: Cross multiply
    92,158x = 138,589 × 138,589
  4. Step 4: Simplify right side
    92,158x = 19,206,910,921
  5. Step 5: Solve for x
    x = 19,206,910,921/92,158
  6. Step 6: Final answer
    x = 208,412.84

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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.