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Finding the Fourth Proportional to 225,698.88, 338,555.28 and 67,928.48

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Solution

The fourth proportional to 225,698.88, 338,555.28 and 67,928.48 is: 101,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,698.88 : 338,555.28 = 67,928.48 : x
  2. Step 2: Convert to fraction form
    225,698.88/338,555.28 = 67,928.48/x
  3. Step 3: Cross multiply
    225,698.88x = 338,555.28 × 67,928.48
  4. Step 4: Simplify right side
    225,698.88x = 22,997,545,566.37
  5. Step 5: Solve for x
    x = 22,997,545,566.37/225,698.88
  6. Step 6: Final answer
    x = 101,894.81

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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.