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Finding the Fourth Proportional to 110,879.94, 166,336.34 and 40,753.78

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Solution

The fourth proportional to 110,879.94, 166,336.34 and 40,753.78 is: 61,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,879.94 : 166,336.34 = 40,753.78 : x
  2. Step 2: Convert to fraction form
    110,879.94/166,336.34 = 40,753.78/x
  3. Step 3: Cross multiply
    110,879.94x = 166,336.34 × 40,753.78
  4. Step 4: Simplify right side
    110,879.94x = 6,778,834,606.37
  5. Step 5: Solve for x
    x = 6,778,834,606.37/110,879.94
  6. Step 6: Final answer
    x = 61,136.71

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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.