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Finding the Third Proportional to 80,356.50 and 169,659

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Solution

The third proportional to 80,356.50 and 169,659 is: 358,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,356.50 : 169,659 = 169,659 : x
  2. Step 2: Convert to fraction form
    80,356.50/169,659 = 169,659/x
  3. Step 3: Cross multiply
    80,356.50x = 169,659 × 169,659
  4. Step 4: Simplify right side
    80,356.50x = 28,784,176,281
  5. Step 5: Solve for x
    x = 28,784,176,281/80,356.50
  6. Step 6: Final answer
    x = 358,205.95

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.