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Finding the Third Proportional to 122,822 and 260,408

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Solution

The third proportional to 122,822 and 260,408 is: 552,118.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,822 : 260,408 = 260,408 : x
  2. Step 2: Convert to fraction form
    122,822/260,408 = 260,408/x
  3. Step 3: Cross multiply
    122,822x = 260,408 × 260,408
  4. Step 4: Simplify right side
    122,822x = 67,812,326,464
  5. Step 5: Solve for x
    x = 67,812,326,464/122,822
  6. Step 6: Final answer
    x = 552,118.73

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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.