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Finding the Third Proportional to 80,465 and 176,758

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Solution

The third proportional to 80,465 and 176,758 is: 388,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,465 : 176,758 = 176,758 : x
  2. Step 2: Convert to fraction form
    80,465/176,758 = 176,758/x
  3. Step 3: Cross multiply
    80,465x = 176,758 × 176,758
  4. Step 4: Simplify right side
    80,465x = 31,243,390,564
  5. Step 5: Solve for x
    x = 31,243,390,564/80,465
  6. Step 6: Final answer
    x = 388,285.47

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.