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Finding the Fourth Proportional to 75,871.39, 104,702.52 and 41,879.88

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Solution

The fourth proportional to 75,871.39, 104,702.52 and 41,879.88 is: 57,794.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,871.39 : 104,702.52 = 41,879.88 : x
  2. Step 2: Convert to fraction form
    75,871.39/104,702.52 = 41,879.88/x
  3. Step 3: Cross multiply
    75,871.39x = 104,702.52 × 41,879.88
  4. Step 4: Simplify right side
    75,871.39x = 4,384,929,365.93
  5. Step 5: Solve for x
    x = 4,384,929,365.93/75,871.39
  6. Step 6: Final answer
    x = 57,794.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.