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Finding the Fourth Proportional to 202,338.90, 303,544.80 and 84,022.20

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Solution

The fourth proportional to 202,338.90, 303,544.80 and 84,022.20 is: 126,048.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,338.90 : 303,544.80 = 84,022.20 : x
  2. Step 2: Convert to fraction form
    202,338.90/303,544.80 = 84,022.20/x
  3. Step 3: Cross multiply
    202,338.90x = 303,544.80 × 84,022.20
  4. Step 4: Simplify right side
    202,338.90x = 25,504,501,894.56
  5. Step 5: Solve for x
    x = 25,504,501,894.56/202,338.90
  6. Step 6: Final answer
    x = 126,048.44

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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.