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Finding the Fourth Proportional to 353,879.42, 488,359.14 and 192,734.33

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Solution

The fourth proportional to 353,879.42, 488,359.14 and 192,734.33 is: 265,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,879.42 : 488,359.14 = 192,734.33 : x
  2. Step 2: Convert to fraction form
    353,879.42/488,359.14 = 192,734.33/x
  3. Step 3: Cross multiply
    353,879.42x = 488,359.14 × 192,734.33
  4. Step 4: Simplify right side
    353,879.42x = 94,123,568,482.73
  5. Step 5: Solve for x
    x = 94,123,568,482.73/353,879.42
  6. Step 6: Final answer
    x = 265,976.39

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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.