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Finding the Fourth Proportional to 221,573.96, 332,331.78 and 61,660.52

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Solution

The fourth proportional to 221,573.96, 332,331.78 and 61,660.52 is: 92,482.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,573.96 : 332,331.78 = 61,660.52 : x
  2. Step 2: Convert to fraction form
    221,573.96/332,331.78 = 61,660.52/x
  3. Step 3: Cross multiply
    221,573.96x = 332,331.78 × 61,660.52
  4. Step 4: Simplify right side
    221,573.96x = 20,491,750,367.33
  5. Step 5: Solve for x
    x = 20,491,750,367.33/221,573.96
  6. Step 6: Final answer
    x = 92,482.67

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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.