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Finding the Third Proportional to 79,938 and 162,621

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Solution

The third proportional to 79,938 and 162,621 is: 330,826.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,938 : 162,621 = 162,621 : x
  2. Step 2: Convert to fraction form
    79,938/162,621 = 162,621/x
  3. Step 3: Cross multiply
    79,938x = 162,621 × 162,621
  4. Step 4: Simplify right side
    79,938x = 26,445,589,641
  5. Step 5: Solve for x
    x = 26,445,589,641/79,938
  6. Step 6: Final answer
    x = 330,826.26

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.