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Finding the Fourth Proportional to 222,420.91, 333,562.38 and 80,247.71

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Solution

The fourth proportional to 222,420.91, 333,562.38 and 80,247.71 is: 120,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,420.91 : 333,562.38 = 80,247.71 : x
  2. Step 2: Convert to fraction form
    222,420.91/333,562.38 = 80,247.71/x
  3. Step 3: Cross multiply
    222,420.91x = 333,562.38 × 80,247.71
  4. Step 4: Simplify right side
    222,420.91x = 26,767,617,895.82
  5. Step 5: Solve for x
    x = 26,767,617,895.82/222,420.91
  6. Step 6: Final answer
    x = 120,346.68

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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.