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Finding the Third Proportional to 176,408 and 381,111

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Solution

The third proportional to 176,408 and 381,111 is: 823,350.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,408 : 381,111 = 381,111 : x
  2. Step 2: Convert to fraction form
    176,408/381,111 = 381,111/x
  3. Step 3: Cross multiply
    176,408x = 381,111 × 381,111
  4. Step 4: Simplify right side
    176,408x = 145,245,594,321
  5. Step 5: Solve for x
    x = 145,245,594,321/176,408
  6. Step 6: Final answer
    x = 823,350.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.