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Finding the Third Proportional to 75,661 and 109,927

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Solution

The third proportional to 75,661 and 109,927 is: 159,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,661 : 109,927 = 109,927 : x
  2. Step 2: Convert to fraction form
    75,661/109,927 = 109,927/x
  3. Step 3: Cross multiply
    75,661x = 109,927 × 109,927
  4. Step 4: Simplify right side
    75,661x = 12,083,945,329
  5. Step 5: Solve for x
    x = 12,083,945,329/75,661
  6. Step 6: Final answer
    x = 159,711.68

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.