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Finding the Third Proportional to 218,372.25 and 462,987.75

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Solution

The third proportional to 218,372.25 and 462,987.75 is: 981,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,372.25 : 462,987.75 = 462,987.75 : x
  2. Step 2: Convert to fraction form
    218,372.25/462,987.75 = 462,987.75/x
  3. Step 3: Cross multiply
    218,372.25x = 462,987.75 × 462,987.75
  4. Step 4: Simplify right side
    218,372.25x = 214,357,656,650.06
  5. Step 5: Solve for x
    x = 214,357,656,650.06/218,372.25
  6. Step 6: Final answer
    x = 981,615.83

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.