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Finding the Fourth Proportional to 221.73, 332.60 and 59.41

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Solution

The fourth proportional to 221.73, 332.60 and 59.41 is: 89.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.73 : 332.60 = 59.41 : x
  2. Step 2: Convert to fraction form
    221.73/332.60 = 59.41/x
  3. Step 3: Cross multiply
    221.73x = 332.60 × 59.41
  4. Step 4: Simplify right side
    221.73x = 19,759.77
  5. Step 5: Solve for x
    x = 19,759.77/221.73
  6. Step 6: Final answer
    x = 89.12

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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.