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Finding the Third Proportional to 98,916 and 213,672

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Solution

The third proportional to 98,916 and 213,672 is: 461,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,916 : 213,672 = 213,672 : x
  2. Step 2: Convert to fraction form
    98,916/213,672 = 213,672/x
  3. Step 3: Cross multiply
    98,916x = 213,672 × 213,672
  4. Step 4: Simplify right side
    98,916x = 45,655,723,584
  5. Step 5: Solve for x
    x = 45,655,723,584/98,916
  6. Step 6: Final answer
    x = 461,560.55

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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.