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Finding the Third Proportional to 80,576 and 176,704

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Solution

The third proportional to 80,576 and 176,704 is: 387,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,576 : 176,704 = 176,704 : x
  2. Step 2: Convert to fraction form
    80,576/176,704 = 176,704/x
  3. Step 3: Cross multiply
    80,576x = 176,704 × 176,704
  4. Step 4: Simplify right side
    80,576x = 31,224,303,616
  5. Step 5: Solve for x
    x = 31,224,303,616/80,576
  6. Step 6: Final answer
    x = 387,513.70

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.