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Finding the Third Proportional to 98,242 and 212,180

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Solution

The third proportional to 98,242 and 212,180 is: 458,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,242 : 212,180 = 212,180 : x
  2. Step 2: Convert to fraction form
    98,242/212,180 = 212,180/x
  3. Step 3: Cross multiply
    98,242x = 212,180 × 212,180
  4. Step 4: Simplify right side
    98,242x = 45,020,352,400
  5. Step 5: Solve for x
    x = 45,020,352,400/98,242
  6. Step 6: Final answer
    x = 458,259.73

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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.