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Finding the Third Proportional to 80,685.75 and 170,606.25

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Solution

The third proportional to 80,685.75 and 170,606.25 is: 360,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,685.75 : 170,606.25 = 170,606.25 : x
  2. Step 2: Convert to fraction form
    80,685.75/170,606.25 = 170,606.25/x
  3. Step 3: Cross multiply
    80,685.75x = 170,606.25 × 170,606.25
  4. Step 4: Simplify right side
    80,685.75x = 29,106,492,539.06
  5. Step 5: Solve for x
    x = 29,106,492,539.06/80,685.75
  6. Step 6: Final answer
    x = 360,738.95

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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.