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Finding the Fourth Proportional to 69,963.36, 104,959.68 and 38,733.12

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Solution

The fourth proportional to 69,963.36, 104,959.68 and 38,733.12 is: 58,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,963.36 : 104,959.68 = 38,733.12 : x
  2. Step 2: Convert to fraction form
    69,963.36/104,959.68 = 38,733.12/x
  3. Step 3: Cross multiply
    69,963.36x = 104,959.68 × 38,733.12
  4. Step 4: Simplify right side
    69,963.36x = 4,065,415,880.60
  5. Step 5: Solve for x
    x = 4,065,415,880.60/69,963.36
  6. Step 6: Final answer
    x = 58,107.78

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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.