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Finding the Third Proportional to 167,358 and 361,909

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Solution

The third proportional to 167,358 and 361,909 is: 782,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,358 : 361,909 = 361,909 : x
  2. Step 2: Convert to fraction form
    167,358/361,909 = 361,909/x
  3. Step 3: Cross multiply
    167,358x = 361,909 × 361,909
  4. Step 4: Simplify right side
    167,358x = 130,978,124,281
  5. Step 5: Solve for x
    x = 130,978,124,281/167,358
  6. Step 6: Final answer
    x = 782,622.43

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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.