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Finding the Third Proportional to 76,845 and 165,543

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Solution

The third proportional to 76,845 and 165,543 is: 356,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,845 : 165,543 = 165,543 : x
  2. Step 2: Convert to fraction form
    76,845/165,543 = 165,543/x
  3. Step 3: Cross multiply
    76,845x = 165,543 × 165,543
  4. Step 4: Simplify right side
    76,845x = 27,404,484,849
  5. Step 5: Solve for x
    x = 27,404,484,849/76,845
  6. Step 6: Final answer
    x = 356,620.27

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.