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Finding the Fourth Proportional to 69,976.54, 104,891.91 and 30,523.06

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Solution

The fourth proportional to 69,976.54, 104,891.91 and 30,523.06 is: 45,752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,976.54 : 104,891.91 = 30,523.06 : x
  2. Step 2: Convert to fraction form
    69,976.54/104,891.91 = 30,523.06/x
  3. Step 3: Cross multiply
    69,976.54x = 104,891.91 × 30,523.06
  4. Step 4: Simplify right side
    69,976.54x = 3,201,622,062.44
  5. Step 5: Solve for x
    x = 3,201,622,062.44/69,976.54
  6. Step 6: Final answer
    x = 45,752.79

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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.