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Finding the Fourth Proportional to 332,861.60, 459,351.78 and 189,619.40

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Solution

The fourth proportional to 332,861.60, 459,351.78 and 189,619.40 is: 261,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,861.60 : 459,351.78 = 189,619.40 : x
  2. Step 2: Convert to fraction form
    332,861.60/459,351.78 = 189,619.40/x
  3. Step 3: Cross multiply
    332,861.60x = 459,351.78 × 189,619.40
  4. Step 4: Simplify right side
    332,861.60x = 87,102,008,912.53
  5. Step 5: Solve for x
    x = 87,102,008,912.53/332,861.60
  6. Step 6: Final answer
    x = 261,676.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.