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Finding the Fourth Proportional to 79,863.60, 119,795.40 and 50,314.80

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Solution

The fourth proportional to 79,863.60, 119,795.40 and 50,314.80 is: 75,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863.60 : 119,795.40 = 50,314.80 : x
  2. Step 2: Convert to fraction form
    79,863.60/119,795.40 = 50,314.80/x
  3. Step 3: Cross multiply
    79,863.60x = 119,795.40 × 50,314.80
  4. Step 4: Simplify right side
    79,863.60x = 6,027,481,591.92
  5. Step 5: Solve for x
    x = 6,027,481,591.92/79,863.60
  6. Step 6: Final answer
    x = 75,472.20

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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.