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Finding the Fourth Proportional to 69,794.37, 104,651.78 and 47,634.57

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Solution

The fourth proportional to 69,794.37, 104,651.78 and 47,634.57 is: 71,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,794.37 : 104,651.78 = 47,634.57 : x
  2. Step 2: Convert to fraction form
    69,794.37/104,651.78 = 47,634.57/x
  3. Step 3: Cross multiply
    69,794.37x = 104,651.78 × 47,634.57
  4. Step 4: Simplify right side
    69,794.37x = 4,985,042,301.86
  5. Step 5: Solve for x
    x = 4,985,042,301.86/69,794.37
  6. Step 6: Final answer
    x = 71,424.71

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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.