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Finding the Fourth Proportional to 50,469.69, 75,771.50 and 43,121.37

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Solution

The fourth proportional to 50,469.69, 75,771.50 and 43,121.37 is: 64,739.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,469.69 : 75,771.50 = 43,121.37 : x
  2. Step 2: Convert to fraction form
    50,469.69/75,771.50 = 43,121.37/x
  3. Step 3: Cross multiply
    50,469.69x = 75,771.50 × 43,121.37
  4. Step 4: Simplify right side
    50,469.69x = 3,267,370,671.35
  5. Step 5: Solve for x
    x = 3,267,370,671.35/50,469.69
  6. Step 6: Final answer
    x = 64,739.27

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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.