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Finding the Fourth Proportional to 202,091.80, 303,793.80 and 143,334.40

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Solution

The fourth proportional to 202,091.80, 303,793.80 and 143,334.40 is: 215,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,091.80 : 303,793.80 = 143,334.40 : x
  2. Step 2: Convert to fraction form
    202,091.80/303,793.80 = 143,334.40/x
  3. Step 3: Cross multiply
    202,091.80x = 303,793.80 × 143,334.40
  4. Step 4: Simplify right side
    202,091.80x = 43,544,102,046.72
  5. Step 5: Solve for x
    x = 43,544,102,046.72/202,091.80
  6. Step 6: Final answer
    x = 215,466.94

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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.