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Finding the Fourth Proportional to 126,843.88, 190,264.44 and 38,093.60

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Solution

The fourth proportional to 126,843.88, 190,264.44 and 38,093.60 is: 57,139.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,843.88 : 190,264.44 = 38,093.60 : x
  2. Step 2: Convert to fraction form
    126,843.88/190,264.44 = 38,093.60/x
  3. Step 3: Cross multiply
    126,843.88x = 190,264.44 × 38,093.60
  4. Step 4: Simplify right side
    126,843.88x = 7,247,857,471.58
  5. Step 5: Solve for x
    x = 7,247,857,471.58/126,843.88
  6. Step 6: Final answer
    x = 57,139.99

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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.