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Finding the Third Proportional to 86,836 and 189,224

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Solution

The third proportional to 86,836 and 189,224 is: 412,337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,836 : 189,224 = 189,224 : x
  2. Step 2: Convert to fraction form
    86,836/189,224 = 189,224/x
  3. Step 3: Cross multiply
    86,836x = 189,224 × 189,224
  4. Step 4: Simplify right side
    86,836x = 35,805,722,176
  5. Step 5: Solve for x
    x = 35,805,722,176/86,836
  6. Step 6: Final answer
    x = 412,337.30

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.