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Finding the Third Proportional to 185,910 and 381,708

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Solution

The third proportional to 185,910 and 381,708 is: 783,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,910 : 381,708 = 381,708 : x
  2. Step 2: Convert to fraction form
    185,910/381,708 = 381,708/x
  3. Step 3: Cross multiply
    185,910x = 381,708 × 381,708
  4. Step 4: Simplify right side
    185,910x = 145,700,997,264
  5. Step 5: Solve for x
    x = 145,700,997,264/185,910
  6. Step 6: Final answer
    x = 783,717.91

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.