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Finding the Third Proportional to 89,742.38 and 194,343.75

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Solution

The third proportional to 89,742.38 and 194,343.75 is: 420,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,742.38 : 194,343.75 = 194,343.75 : x
  2. Step 2: Convert to fraction form
    89,742.38/194,343.75 = 194,343.75/x
  3. Step 3: Cross multiply
    89,742.38x = 194,343.75 × 194,343.75
  4. Step 4: Simplify right side
    89,742.38x = 37,769,493,164.06
  5. Step 5: Solve for x
    x = 37,769,493,164.06/89,742.38
  6. Step 6: Final answer
    x = 420,865.76

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.