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Finding the Fourth Proportional to 353,198.99, 487,404.38 and 200,251.37

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Solution

The fourth proportional to 353,198.99, 487,404.38 and 200,251.37 is: 276,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,198.99 : 487,404.38 = 200,251.37 : x
  2. Step 2: Convert to fraction form
    353,198.99/487,404.38 = 200,251.37/x
  3. Step 3: Cross multiply
    353,198.99x = 487,404.38 × 200,251.37
  4. Step 4: Simplify right side
    353,198.99x = 97,603,396,558.14
  5. Step 5: Solve for x
    x = 97,603,396,558.14/353,198.99
  6. Step 6: Final answer
    x = 276,341.10

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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.