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Finding the Third Proportional to 121,456.13 and 266,825.25

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Solution

The third proportional to 121,456.13 and 266,825.25 is: 586,184.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,456.13 : 266,825.25 = 266,825.25 : x
  2. Step 2: Convert to fraction form
    121,456.13/266,825.25 = 266,825.25/x
  3. Step 3: Cross multiply
    121,456.13x = 266,825.25 × 266,825.25
  4. Step 4: Simplify right side
    121,456.13x = 71,195,714,037.56
  5. Step 5: Solve for x
    x = 71,195,714,037.56/121,456.13
  6. Step 6: Final answer
    x = 586,184.63

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.