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Finding the Fourth Proportional to 225,144.36, 310,694.94 and 124,542.36

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Solution

The fourth proportional to 225,144.36, 310,694.94 and 124,542.36 is: 171,866.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,144.36 : 310,694.94 = 124,542.36 : x
  2. Step 2: Convert to fraction form
    225,144.36/310,694.94 = 124,542.36/x
  3. Step 3: Cross multiply
    225,144.36x = 310,694.94 × 124,542.36
  4. Step 4: Simplify right side
    225,144.36x = 38,694,681,067.66
  5. Step 5: Solve for x
    x = 38,694,681,067.66/225,144.36
  6. Step 6: Final answer
    x = 171,866.09

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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.