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Finding the Third Proportional to 107,781 and 163,163

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Solution

The third proportional to 107,781 and 163,163 is: 247,002.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,781 : 163,163 = 163,163 : x
  2. Step 2: Convert to fraction form
    107,781/163,163 = 163,163/x
  3. Step 3: Cross multiply
    107,781x = 163,163 × 163,163
  4. Step 4: Simplify right side
    107,781x = 26,622,164,569
  5. Step 5: Solve for x
    x = 26,622,164,569/107,781
  6. Step 6: Final answer
    x = 247,002.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.