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Finding the Third Proportional to 76,563 and 162,393

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Solution

The third proportional to 76,563 and 162,393 is: 344,441.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,563 : 162,393 = 162,393 : x
  2. Step 2: Convert to fraction form
    76,563/162,393 = 162,393/x
  3. Step 3: Cross multiply
    76,563x = 162,393 × 162,393
  4. Step 4: Simplify right side
    76,563x = 26,371,486,449
  5. Step 5: Solve for x
    x = 26,371,486,449/76,563
  6. Step 6: Final answer
    x = 344,441.66

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.