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Finding the Fourth Proportional to 69,366.78, 103,963.88 and 36,067.28

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Solution

The fourth proportional to 69,366.78, 103,963.88 and 36,067.28 is: 54,056.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,366.78 : 103,963.88 = 36,067.28 : x
  2. Step 2: Convert to fraction form
    69,366.78/103,963.88 = 36,067.28/x
  3. Step 3: Cross multiply
    69,366.78x = 103,963.88 × 36,067.28
  4. Step 4: Simplify right side
    69,366.78x = 3,749,694,369.85
  5. Step 5: Solve for x
    x = 3,749,694,369.85/69,366.78
  6. Step 6: Final answer
    x = 54,056.05

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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.