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Finding the Third Proportional to 98,578.75 and 213,765.25

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Solution

The third proportional to 98,578.75 and 213,765.25 is: 463,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,578.75 : 213,765.25 = 213,765.25 : x
  2. Step 2: Convert to fraction form
    98,578.75/213,765.25 = 213,765.25/x
  3. Step 3: Cross multiply
    98,578.75x = 213,765.25 × 213,765.25
  4. Step 4: Simplify right side
    98,578.75x = 45,695,582,107.56
  5. Step 5: Solve for x
    x = 45,695,582,107.56/98,578.75
  6. Step 6: Final answer
    x = 463,543.94

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.