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Finding the Fourth Proportional to 225,960.97, 338,939.97 and 57,479.86

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Solution

The fourth proportional to 225,960.97, 338,939.97 and 57,479.86 is: 86,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,960.97 : 338,939.97 = 57,479.86 : x
  2. Step 2: Convert to fraction form
    225,960.97/338,939.97 = 57,479.86/x
  3. Step 3: Cross multiply
    225,960.97x = 338,939.97 × 57,479.86
  4. Step 4: Simplify right side
    225,960.97x = 19,482,220,329.30
  5. Step 5: Solve for x
    x = 19,482,220,329.30/225,960.97
  6. Step 6: Final answer
    x = 86,219.41

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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.