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Finding the Third Proportional to 81,226 and 195,681

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Solution

The third proportional to 81,226 and 195,681 is: 471,413.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,226 : 195,681 = 195,681 : x
  2. Step 2: Convert to fraction form
    81,226/195,681 = 195,681/x
  3. Step 3: Cross multiply
    81,226x = 195,681 × 195,681
  4. Step 4: Simplify right side
    81,226x = 38,291,053,761
  5. Step 5: Solve for x
    x = 38,291,053,761/81,226
  6. Step 6: Final answer
    x = 471,413.76

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.