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Finding the Fourth Proportional to 332,842.31, 459,269.30 and 189,605.15

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Solution

The fourth proportional to 332,842.31, 459,269.30 and 189,605.15 is: 261,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,842.31 : 459,269.30 = 189,605.15 : x
  2. Step 2: Convert to fraction form
    332,842.31/459,269.30 = 189,605.15/x
  3. Step 3: Cross multiply
    332,842.31x = 459,269.30 × 189,605.15
  4. Step 4: Simplify right side
    332,842.31x = 87,079,823,568.87
  5. Step 5: Solve for x
    x = 87,079,823,568.87/332,842.31
  6. Step 6: Final answer
    x = 261,624.86

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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.