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Finding the Third Proportional to 122,999 and 264,874

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Solution

The third proportional to 122,999 and 264,874 is: 570,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,999 : 264,874 = 264,874 : x
  2. Step 2: Convert to fraction form
    122,999/264,874 = 264,874/x
  3. Step 3: Cross multiply
    122,999x = 264,874 × 264,874
  4. Step 4: Simplify right side
    122,999x = 70,158,235,876
  5. Step 5: Solve for x
    x = 70,158,235,876/122,999
  6. Step 6: Final answer
    x = 570,396.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.