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Finding the Third Proportional to 77,892 and 111,006

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Solution

The third proportional to 77,892 and 111,006 is: 158,197.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,892 : 111,006 = 111,006 : x
  2. Step 2: Convert to fraction form
    77,892/111,006 = 111,006/x
  3. Step 3: Cross multiply
    77,892x = 111,006 × 111,006
  4. Step 4: Simplify right side
    77,892x = 12,322,332,036
  5. Step 5: Solve for x
    x = 12,322,332,036/77,892
  6. Step 6: Final answer
    x = 158,197.66

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.