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Finding the Fourth Proportional to 262,670.70, 394,040.10 and 120,481.68

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Solution

The fourth proportional to 262,670.70, 394,040.10 and 120,481.68 is: 180,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,670.70 : 394,040.10 = 120,481.68 : x
  2. Step 2: Convert to fraction form
    262,670.70/394,040.10 = 120,481.68/x
  3. Step 3: Cross multiply
    262,670.70x = 394,040.10 × 120,481.68
  4. Step 4: Simplify right side
    262,670.70x = 47,474,613,235.37
  5. Step 5: Solve for x
    x = 47,474,613,235.37/262,670.70
  6. Step 6: Final answer
    x = 180,738.14

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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.