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Finding the Third Proportional to 122,406.75 and 259,508.25

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Solution

The third proportional to 122,406.75 and 259,508.25 is: 550,170.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,406.75 : 259,508.25 = 259,508.25 : x
  2. Step 2: Convert to fraction form
    122,406.75/259,508.25 = 259,508.25/x
  3. Step 3: Cross multiply
    122,406.75x = 259,508.25 × 259,508.25
  4. Step 4: Simplify right side
    122,406.75x = 67,344,531,818.06
  5. Step 5: Solve for x
    x = 67,344,531,818.06/122,406.75
  6. Step 6: Final answer
    x = 550,170.08

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.