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Finding the Fourth Proportional to 67,408.40, 100,977.26 and 33,572.44

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Solution

The fourth proportional to 67,408.40, 100,977.26 and 33,572.44 is: 50,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,408.40 : 100,977.26 = 33,572.44 : x
  2. Step 2: Convert to fraction form
    67,408.40/100,977.26 = 33,572.44/x
  3. Step 3: Cross multiply
    67,408.40x = 100,977.26 × 33,572.44
  4. Step 4: Simplify right side
    67,408.40x = 3,390,053,002.71
  5. Step 5: Solve for x
    x = 3,390,053,002.71/67,408.40
  6. Step 6: Final answer
    x = 50,291.25

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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.