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Finding the Fourth Proportional to 79,672.40, 119,249.40 and 62,046.80

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Solution

The fourth proportional to 79,672.40, 119,249.40 and 62,046.80 is: 92,868.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,672.40 : 119,249.40 = 62,046.80 : x
  2. Step 2: Convert to fraction form
    79,672.40/119,249.40 = 62,046.80/x
  3. Step 3: Cross multiply
    79,672.40x = 119,249.40 × 62,046.80
  4. Step 4: Simplify right side
    79,672.40x = 7,399,043,671.92
  5. Step 5: Solve for x
    x = 7,399,043,671.92/79,672.40
  6. Step 6: Final answer
    x = 92,868.34

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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.