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Finding the Fourth Proportional to 64,439.52, 88,976.88 and 41,789.28

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Solution

The fourth proportional to 64,439.52, 88,976.88 and 41,789.28 is: 57,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,439.52 : 88,976.88 = 41,789.28 : x
  2. Step 2: Convert to fraction form
    64,439.52/88,976.88 = 41,789.28/x
  3. Step 3: Cross multiply
    64,439.52x = 88,976.88 × 41,789.28
  4. Step 4: Simplify right side
    64,439.52x = 3,718,279,751.85
  5. Step 5: Solve for x
    x = 3,718,279,751.85/64,439.52
  6. Step 6: Final answer
    x = 57,701.85

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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.