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Finding the Third Proportional to 180,664 and 268,374

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Solution

The third proportional to 180,664 and 268,374 is: 398,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,664 : 268,374 = 268,374 : x
  2. Step 2: Convert to fraction form
    180,664/268,374 = 268,374/x
  3. Step 3: Cross multiply
    180,664x = 268,374 × 268,374
  4. Step 4: Simplify right side
    180,664x = 72,024,603,876
  5. Step 5: Solve for x
    x = 72,024,603,876/180,664
  6. Step 6: Final answer
    x = 398,666.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.