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Finding the Fourth Proportional to 263,471.28, 395,224.48 and 92,672.48

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Solution

The fourth proportional to 263,471.28, 395,224.48 and 92,672.48 is: 139,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,471.28 : 395,224.48 = 92,672.48 : x
  2. Step 2: Convert to fraction form
    263,471.28/395,224.48 = 92,672.48/x
  3. Step 3: Cross multiply
    263,471.28x = 395,224.48 × 92,672.48
  4. Step 4: Simplify right side
    263,471.28x = 36,626,432,718.31
  5. Step 5: Solve for x
    x = 36,626,432,718.31/263,471.28
  6. Step 6: Final answer
    x = 139,014.90

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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.