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Finding the Fourth Proportional to 225,091.54, 310,721.97 and 140,250.52

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Solution

The fourth proportional to 225,091.54, 310,721.97 and 140,250.52 is: 193,605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,091.54 : 310,721.97 = 140,250.52 : x
  2. Step 2: Convert to fraction form
    225,091.54/310,721.97 = 140,250.52/x
  3. Step 3: Cross multiply
    225,091.54x = 310,721.97 × 140,250.52
  4. Step 4: Simplify right side
    225,091.54x = 43,578,917,867.92
  5. Step 5: Solve for x
    x = 43,578,917,867.92/225,091.54
  6. Step 6: Final answer
    x = 193,605.31

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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.