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Finding the Fourth Proportional to 75,224.37, 103,805.78 and 43,391.37

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Solution

The fourth proportional to 75,224.37, 103,805.78 and 43,391.37 is: 59,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,224.37 : 103,805.78 = 43,391.37 : x
  2. Step 2: Convert to fraction form
    75,224.37/103,805.78 = 43,391.37/x
  3. Step 3: Cross multiply
    75,224.37x = 103,805.78 × 43,391.37
  4. Step 4: Simplify right side
    75,224.37x = 4,504,274,791.16
  5. Step 5: Solve for x
    x = 4,504,274,791.16/75,224.37
  6. Step 6: Final answer
    x = 59,877.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.