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Finding the Third Proportional to 98,741 and 213,439

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Solution

The third proportional to 98,741 and 213,439 is: 461,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,741 : 213,439 = 213,439 : x
  2. Step 2: Convert to fraction form
    98,741/213,439 = 213,439/x
  3. Step 3: Cross multiply
    98,741x = 213,439 × 213,439
  4. Step 4: Simplify right side
    98,741x = 45,556,206,721
  5. Step 5: Solve for x
    x = 45,556,206,721/98,741
  6. Step 6: Final answer
    x = 461,370.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.