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Finding the Third Proportional to 56,781 and 124,983

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Solution

The third proportional to 56,781 and 124,983 is: 275,105.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,781 : 124,983 = 124,983 : x
  2. Step 2: Convert to fraction form
    56,781/124,983 = 124,983/x
  3. Step 3: Cross multiply
    56,781x = 124,983 × 124,983
  4. Step 4: Simplify right side
    56,781x = 15,620,750,289
  5. Step 5: Solve for x
    x = 15,620,750,289/56,781
  6. Step 6: Final answer
    x = 275,105.23

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.