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Finding the Fourth Proportional to 339,418.53, 468,556.74 and 196,150.59

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Solution

The fourth proportional to 339,418.53, 468,556.74 and 196,150.59 is: 270,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,418.53 : 468,556.74 = 196,150.59 : x
  2. Step 2: Convert to fraction form
    339,418.53/468,556.74 = 196,150.59/x
  3. Step 3: Cross multiply
    339,418.53x = 468,556.74 × 196,150.59
  4. Step 4: Simplify right side
    339,418.53x = 91,907,680,999.48
  5. Step 5: Solve for x
    x = 91,907,680,999.48/339,418.53
  6. Step 6: Final answer
    x = 270,779.80

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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.