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Finding the Fourth Proportional to 270,562.44, 405,940.26 and 120,789.39

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Solution

The fourth proportional to 270,562.44, 405,940.26 and 120,789.39 is: 181,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,562.44 : 405,940.26 = 120,789.39 : x
  2. Step 2: Convert to fraction form
    270,562.44/405,940.26 = 120,789.39/x
  3. Step 3: Cross multiply
    270,562.44x = 405,940.26 × 120,789.39
  4. Step 4: Simplify right side
    270,562.44x = 49,033,276,381.84
  5. Step 5: Solve for x
    x = 49,033,276,381.84/270,562.44
  6. Step 6: Final answer
    x = 181,227.21

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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.