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Finding the Third Proportional to 73,930.50 and 162,621

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Solution

The third proportional to 73,930.50 and 162,621 is: 357,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,930.50 : 162,621 = 162,621 : x
  2. Step 2: Convert to fraction form
    73,930.50/162,621 = 162,621/x
  3. Step 3: Cross multiply
    73,930.50x = 162,621 × 162,621
  4. Step 4: Simplify right side
    73,930.50x = 26,445,589,641
  5. Step 5: Solve for x
    x = 26,445,589,641/73,930.50
  6. Step 6: Final answer
    x = 357,708.79

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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.