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Finding the Fourth Proportional to 89,930.44, 134,723.94 and 50,367.88

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Solution

The fourth proportional to 89,930.44, 134,723.94 and 50,367.88 is: 75,455.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,930.44 : 134,723.94 = 50,367.88 : x
  2. Step 2: Convert to fraction form
    89,930.44/134,723.94 = 50,367.88/x
  3. Step 3: Cross multiply
    89,930.44x = 134,723.94 × 50,367.88
  4. Step 4: Simplify right side
    89,930.44x = 6,785,759,243.05
  5. Step 5: Solve for x
    x = 6,785,759,243.05/89,930.44
  6. Step 6: Final answer
    x = 75,455.64

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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.