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Finding the Fourth Proportional to 69,508.40, 104,143.57 and 37,940.60

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Solution

The fourth proportional to 69,508.40, 104,143.57 and 37,940.60 is: 56,845.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,508.40 : 104,143.57 = 37,940.60 : x
  2. Step 2: Convert to fraction form
    69,508.40/104,143.57 = 37,940.60/x
  3. Step 3: Cross multiply
    69,508.40x = 104,143.57 × 37,940.60
  4. Step 4: Simplify right side
    69,508.40x = 3,951,269,697.45
  5. Step 5: Solve for x
    x = 3,951,269,697.45/69,508.40
  6. Step 6: Final answer
    x = 56,845.93

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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.