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Finding the Fourth Proportional to 339,409.26, 468,279.42 and 196,117.02

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Solution

The fourth proportional to 339,409.26, 468,279.42 and 196,117.02 is: 270,580.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,409.26 : 468,279.42 = 196,117.02 : x
  2. Step 2: Convert to fraction form
    339,409.26/468,279.42 = 196,117.02/x
  3. Step 3: Cross multiply
    339,409.26x = 468,279.42 × 196,117.02
  4. Step 4: Simplify right side
    339,409.26x = 91,837,564,377.73
  5. Step 5: Solve for x
    x = 91,837,564,377.73/339,409.26
  6. Step 6: Final answer
    x = 270,580.61

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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.