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Finding the Fourth Proportional to 317,127.56, 475,761.30 and 92,505.57

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Solution

The fourth proportional to 317,127.56, 475,761.30 and 92,505.57 is: 138,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,127.56 : 475,761.30 = 92,505.57 : x
  2. Step 2: Convert to fraction form
    317,127.56/475,761.30 = 92,505.57/x
  3. Step 3: Cross multiply
    317,127.56x = 475,761.30 × 92,505.57
  4. Step 4: Simplify right side
    317,127.56x = 44,010,570,240.44
  5. Step 5: Solve for x
    x = 44,010,570,240.44/317,127.56
  6. Step 6: Final answer
    x = 138,778.76

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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.