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Finding the Fourth Proportional to 79,958.94, 119,938.82 and 33,211.86

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Solution

The fourth proportional to 79,958.94, 119,938.82 and 33,211.86 is: 49,817.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,958.94 : 119,938.82 = 33,211.86 : x
  2. Step 2: Convert to fraction form
    79,958.94/119,938.82 = 33,211.86/x
  3. Step 3: Cross multiply
    79,958.94x = 119,938.82 × 33,211.86
  4. Step 4: Simplify right side
    79,958.94x = 3,983,391,132.35
  5. Step 5: Solve for x
    x = 3,983,391,132.35/79,958.94
  6. Step 6: Final answer
    x = 49,817.96

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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.