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Finding the Third Proportional to 118,858 and 261,041

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Solution

The third proportional to 118,858 and 261,041 is: 573,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,858 : 261,041 = 261,041 : x
  2. Step 2: Convert to fraction form
    118,858/261,041 = 261,041/x
  3. Step 3: Cross multiply
    118,858x = 261,041 × 261,041
  4. Step 4: Simplify right side
    118,858x = 68,142,403,681
  5. Step 5: Solve for x
    x = 68,142,403,681/118,858
  6. Step 6: Final answer
    x = 573,309.36

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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.