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Finding the Fourth Proportional to 263,090.31, 394,658.55 and 73,552.74

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Solution

The fourth proportional to 263,090.31, 394,658.55 and 73,552.74 is: 110,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,090.31 : 394,658.55 = 73,552.74 : x
  2. Step 2: Convert to fraction form
    263,090.31/394,658.55 = 73,552.74/x
  3. Step 3: Cross multiply
    263,090.31x = 394,658.55 × 73,552.74
  4. Step 4: Simplify right side
    263,090.31x = 29,028,217,716.93
  5. Step 5: Solve for x
    x = 29,028,217,716.93/263,090.31
  6. Step 6: Final answer
    x = 110,335.56

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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.