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Finding the Fourth Proportional to 270,093.48, 405,120.78 and 118,305.96

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Solution

The fourth proportional to 270,093.48, 405,120.78 and 118,305.96 is: 177,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,093.48 : 405,120.78 = 118,305.96 : x
  2. Step 2: Convert to fraction form
    270,093.48/405,120.78 = 118,305.96/x
  3. Step 3: Cross multiply
    270,093.48x = 405,120.78 × 118,305.96
  4. Step 4: Simplify right side
    270,093.48x = 47,928,202,793.85
  5. Step 5: Solve for x
    x = 47,928,202,793.85/270,093.48
  6. Step 6: Final answer
    x = 177,450.42

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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.