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Finding the Third Proportional to 168,358 and 363,421

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Solution

The third proportional to 168,358 and 363,421 is: 784,487.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,358 : 363,421 = 363,421 : x
  2. Step 2: Convert to fraction form
    168,358/363,421 = 363,421/x
  3. Step 3: Cross multiply
    168,358x = 363,421 × 363,421
  4. Step 4: Simplify right side
    168,358x = 132,074,823,241
  5. Step 5: Solve for x
    x = 132,074,823,241/168,358
  6. Step 6: Final answer
    x = 784,487.96

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.