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Finding the Fourth Proportional to 252,889.44, 379,353.60 and 75,382.56

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Solution

The fourth proportional to 252,889.44, 379,353.60 and 75,382.56 is: 113,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,889.44 : 379,353.60 = 75,382.56 : x
  2. Step 2: Convert to fraction form
    252,889.44/379,353.60 = 75,382.56/x
  3. Step 3: Cross multiply
    252,889.44x = 379,353.60 × 75,382.56
  4. Step 4: Simplify right side
    252,889.44x = 28,596,645,513.22
  5. Step 5: Solve for x
    x = 28,596,645,513.22/252,889.44
  6. Step 6: Final answer
    x = 113,079.63

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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.