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Finding the Fourth Proportional to 222,355.92, 333,538.84 and 80,212.56

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Solution

The fourth proportional to 222,355.92, 333,538.84 and 80,212.56 is: 120,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,355.92 : 333,538.84 = 80,212.56 : x
  2. Step 2: Convert to fraction form
    222,355.92/333,538.84 = 80,212.56/x
  3. Step 3: Cross multiply
    222,355.92x = 333,538.84 × 80,212.56
  4. Step 4: Simplify right side
    222,355.92x = 26,754,004,215.83
  5. Step 5: Solve for x
    x = 26,754,004,215.83/222,355.92
  6. Step 6: Final answer
    x = 120,320.63

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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.