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Finding the Fourth Proportional to 69,356.31, 104,049.95 and 27,240.45

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Solution

The fourth proportional to 69,356.31, 104,049.95 and 27,240.45 is: 40,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,356.31 : 104,049.95 = 27,240.45 : x
  2. Step 2: Convert to fraction form
    69,356.31/104,049.95 = 27,240.45/x
  3. Step 3: Cross multiply
    69,356.31x = 104,049.95 × 27,240.45
  4. Step 4: Simplify right side
    69,356.31x = 2,834,367,324.28
  5. Step 5: Solve for x
    x = 2,834,367,324.28/69,356.31
  6. Step 6: Final answer
    x = 40,866.75

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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.