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Finding the Fourth Proportional to 245,776.05, 339,089.09 and 200,375.82

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Solution

The fourth proportional to 245,776.05, 339,089.09 and 200,375.82 is: 276,451.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,776.05 : 339,089.09 = 200,375.82 : x
  2. Step 2: Convert to fraction form
    245,776.05/339,089.09 = 200,375.82/x
  3. Step 3: Cross multiply
    245,776.05x = 339,089.09 × 200,375.82
  4. Step 4: Simplify right side
    245,776.05x = 67,945,253,459.92
  5. Step 5: Solve for x
    x = 67,945,253,459.92/245,776.05
  6. Step 6: Final answer
    x = 276,451.89

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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.