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Finding the Fourth Proportional to 222,606.20, 333,690.60 and 198,986.60

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Solution

The fourth proportional to 222,606.20, 333,690.60 and 198,986.60 is: 298,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,606.20 : 333,690.60 = 198,986.60 : x
  2. Step 2: Convert to fraction form
    222,606.20/333,690.60 = 198,986.60/x
  3. Step 3: Cross multiply
    222,606.20x = 333,690.60 × 198,986.60
  4. Step 4: Simplify right side
    222,606.20x = 66,399,957,945.96
  5. Step 5: Solve for x
    x = 66,399,957,945.96/222,606.20
  6. Step 6: Final answer
    x = 298,284.41

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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.