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Finding the Fourth Proportional to 303,551.28, 418,819.14 and 196,082.10

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Solution

The fourth proportional to 303,551.28, 418,819.14 and 196,082.10 is: 270,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,551.28 : 418,819.14 = 196,082.10 : x
  2. Step 2: Convert to fraction form
    303,551.28/418,819.14 = 196,082.10/x
  3. Step 3: Cross multiply
    303,551.28x = 418,819.14 × 196,082.10
  4. Step 4: Simplify right side
    303,551.28x = 82,122,936,491.39
  5. Step 5: Solve for x
    x = 82,122,936,491.39/303,551.28
  6. Step 6: Final answer
    x = 270,540.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.