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Finding the Third Proportional to 161,876 and 355,874

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Solution

The third proportional to 161,876 and 355,874 is: 782,366.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,876 : 355,874 = 355,874 : x
  2. Step 2: Convert to fraction form
    161,876/355,874 = 355,874/x
  3. Step 3: Cross multiply
    161,876x = 355,874 × 355,874
  4. Step 4: Simplify right side
    161,876x = 126,646,303,876
  5. Step 5: Solve for x
    x = 126,646,303,876/161,876
  6. Step 6: Final answer
    x = 782,366.16

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.