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Finding the Fourth Proportional to 263,559.72, 394,925.60 and 203,734.82

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Solution

The fourth proportional to 263,559.72, 394,925.60 and 203,734.82 is: 305,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,559.72 : 394,925.60 = 203,734.82 : x
  2. Step 2: Convert to fraction form
    263,559.72/394,925.60 = 203,734.82/x
  3. Step 3: Cross multiply
    263,559.72x = 394,925.60 × 203,734.82
  4. Step 4: Simplify right side
    263,559.72x = 80,460,096,029.39
  5. Step 5: Solve for x
    x = 80,460,096,029.39/263,559.72
  6. Step 6: Final answer
    x = 305,282.22

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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.