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Finding the Third Proportional to 98,806 and 213,060

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Solution

The third proportional to 98,806 and 213,060 is: 459,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,806 : 213,060 = 213,060 : x
  2. Step 2: Convert to fraction form
    98,806/213,060 = 213,060/x
  3. Step 3: Cross multiply
    98,806x = 213,060 × 213,060
  4. Step 4: Simplify right side
    98,806x = 45,394,563,600
  5. Step 5: Solve for x
    x = 45,394,563,600/98,806
  6. Step 6: Final answer
    x = 459,431.25

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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.