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Finding the Third Proportional to 76,542 and 164,802

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Solution

The third proportional to 76,542 and 164,802 is: 354,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,542 : 164,802 = 164,802 : x
  2. Step 2: Convert to fraction form
    76,542/164,802 = 164,802/x
  3. Step 3: Cross multiply
    76,542x = 164,802 × 164,802
  4. Step 4: Simplify right side
    76,542x = 27,159,699,204
  5. Step 5: Solve for x
    x = 27,159,699,204/76,542
  6. Step 6: Final answer
    x = 354,833.94

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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.