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Finding the Fourth Proportional to 79,836.87, 119,755.86 and 35,451.57

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Solution

The fourth proportional to 79,836.87, 119,755.86 and 35,451.57 is: 53,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,836.87 : 119,755.86 = 35,451.57 : x
  2. Step 2: Convert to fraction form
    79,836.87/119,755.86 = 35,451.57/x
  3. Step 3: Cross multiply
    79,836.87x = 119,755.86 × 35,451.57
  4. Step 4: Simplify right side
    79,836.87x = 4,245,533,253.70
  5. Step 5: Solve for x
    x = 4,245,533,253.70/79,836.87
  6. Step 6: Final answer
    x = 53,177.60

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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.