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Finding the Third Proportional to 125,911 and 276,630

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Solution

The third proportional to 125,911 and 276,630 is: 607,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,911 : 276,630 = 276,630 : x
  2. Step 2: Convert to fraction form
    125,911/276,630 = 276,630/x
  3. Step 3: Cross multiply
    125,911x = 276,630 × 276,630
  4. Step 4: Simplify right side
    125,911x = 76,524,156,900
  5. Step 5: Solve for x
    x = 76,524,156,900/125,911
  6. Step 6: Final answer
    x = 607,763.87

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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.