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Finding the Fourth Proportional to 69,940.85, 104,942.28 and 36,653.00

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Solution

The fourth proportional to 69,940.85, 104,942.28 and 36,653.00 is: 54,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,940.85 : 104,942.28 = 36,653.00 : x
  2. Step 2: Convert to fraction form
    69,940.85/104,942.28 = 36,653.00/x
  3. Step 3: Cross multiply
    69,940.85x = 104,942.28 × 36,653.00
  4. Step 4: Simplify right side
    69,940.85x = 3,846,449,218.12
  5. Step 5: Solve for x
    x = 3,846,449,218.12/69,940.85
  6. Step 6: Final answer
    x = 54,995.75

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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.