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Finding the Fourth Proportional to 127,378.79, 191,067.91 and 33,884.54

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Solution

The fourth proportional to 127,378.79, 191,067.91 and 33,884.54 is: 50,826.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,378.79 : 191,067.91 = 33,884.54 : x
  2. Step 2: Convert to fraction form
    127,378.79/191,067.91 = 33,884.54/x
  3. Step 3: Cross multiply
    127,378.79x = 191,067.91 × 33,884.54
  4. Step 4: Simplify right side
    127,378.79x = 6,474,247,199.06
  5. Step 5: Solve for x
    x = 6,474,247,199.06/127,378.79
  6. Step 6: Final answer
    x = 50,826.73

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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.