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Finding the Fourth Proportional to 57,391.79, 79,177.97 and 33,188.37

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Solution

The fourth proportional to 57,391.79, 79,177.97 and 33,188.37 is: 45,786.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,391.79 : 79,177.97 = 33,188.37 : x
  2. Step 2: Convert to fraction form
    57,391.79/79,177.97 = 33,188.37/x
  3. Step 3: Cross multiply
    57,391.79x = 79,177.97 × 33,188.37
  4. Step 4: Simplify right side
    57,391.79x = 2,627,787,598.27
  5. Step 5: Solve for x
    x = 2,627,787,598.27/57,391.79
  6. Step 6: Final answer
    x = 45,786.82

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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.