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Finding the Fourth Proportional to 200,912.13, 301,358.34 and 74,576.97

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Solution

The fourth proportional to 200,912.13, 301,358.34 and 74,576.97 is: 111,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,912.13 : 301,358.34 = 74,576.97 : x
  2. Step 2: Convert to fraction form
    200,912.13/301,358.34 = 74,576.97/x
  3. Step 3: Cross multiply
    200,912.13x = 301,358.34 × 74,576.97
  4. Step 4: Simplify right side
    200,912.13x = 22,474,391,881.43
  5. Step 5: Solve for x
    x = 22,474,391,881.43/200,912.13
  6. Step 6: Final answer
    x = 111,861.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.