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Finding the Third Proportional to 76,801 and 168,364

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Solution

The third proportional to 76,801 and 168,364 is: 369,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,801 : 168,364 = 168,364 : x
  2. Step 2: Convert to fraction form
    76,801/168,364 = 168,364/x
  3. Step 3: Cross multiply
    76,801x = 168,364 × 168,364
  4. Step 4: Simplify right side
    76,801x = 28,346,436,496
  5. Step 5: Solve for x
    x = 28,346,436,496/76,801
  6. Step 6: Final answer
    x = 369,089.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.