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Finding the Fourth Proportional to 221,950.56, 332,856.72 and 74,172

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Solution

The fourth proportional to 221,950.56, 332,856.72 and 74,172 is: 111,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,950.56 : 332,856.72 = 74,172 : x
  2. Step 2: Convert to fraction form
    221,950.56/332,856.72 = 74,172/x
  3. Step 3: Cross multiply
    221,950.56x = 332,856.72 × 74,172
  4. Step 4: Simplify right side
    221,950.56x = 24,688,648,635.84
  5. Step 5: Solve for x
    x = 24,688,648,635.84/221,950.56
  6. Step 6: Final answer
    x = 111,234.90

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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.