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Finding the Third Proportional to 122,492 and 262,479

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Solution

The third proportional to 122,492 and 262,479 is: 562,446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,492 : 262,479 = 262,479 : x
  2. Step 2: Convert to fraction form
    122,492/262,479 = 262,479/x
  3. Step 3: Cross multiply
    122,492x = 262,479 × 262,479
  4. Step 4: Simplify right side
    122,492x = 68,895,225,441
  5. Step 5: Solve for x
    x = 68,895,225,441/122,492
  6. Step 6: Final answer
    x = 562,446.73

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.