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Finding the Fourth Proportional to 225,879.29, 338,709.94 and 131,133.32

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Solution

The fourth proportional to 225,879.29, 338,709.94 and 131,133.32 is: 196,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,879.29 : 338,709.94 = 131,133.32 : x
  2. Step 2: Convert to fraction form
    225,879.29/338,709.94 = 131,133.32/x
  3. Step 3: Cross multiply
    225,879.29x = 338,709.94 × 131,133.32
  4. Step 4: Simplify right side
    225,879.29x = 44,416,160,840.85
  5. Step 5: Solve for x
    x = 44,416,160,840.85/225,879.29
  6. Step 6: Final answer
    x = 196,636.71

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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.