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Finding the Third Proportional to 86,040 and 189,027

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Solution

The third proportional to 86,040 and 189,027 is: 415,285.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,040 : 189,027 = 189,027 : x
  2. Step 2: Convert to fraction form
    86,040/189,027 = 189,027/x
  3. Step 3: Cross multiply
    86,040x = 189,027 × 189,027
  4. Step 4: Simplify right side
    86,040x = 35,731,206,729
  5. Step 5: Solve for x
    x = 35,731,206,729/86,040
  6. Step 6: Final answer
    x = 415,285.99

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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.