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Finding the Third Proportional to 107,867 and 161,185

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Solution

The third proportional to 107,867 and 161,185 is: 240,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,867 : 161,185 = 161,185 : x
  2. Step 2: Convert to fraction form
    107,867/161,185 = 161,185/x
  3. Step 3: Cross multiply
    107,867x = 161,185 × 161,185
  4. Step 4: Simplify right side
    107,867x = 25,980,604,225
  5. Step 5: Solve for x
    x = 25,980,604,225/107,867
  6. Step 6: Final answer
    x = 240,857.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.