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Finding the Third Proportional to 68,617.13 and 109,555.03

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Solution

The third proportional to 68,617.13 and 109,555.03 is: 174,917.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,617.13 : 109,555.03 = 109,555.03 : x
  2. Step 2: Convert to fraction form
    68,617.13/109,555.03 = 109,555.03/x
  3. Step 3: Cross multiply
    68,617.13x = 109,555.03 × 109,555.03
  4. Step 4: Simplify right side
    68,617.13x = 12,002,304,872.19
  5. Step 5: Solve for x
    x = 12,002,304,872.19/68,617.13
  6. Step 6: Final answer
    x = 174,917.05

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.