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Finding the Fourth Proportional to 67,591.60, 101,392.64 and 20,203.41

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Solution

The fourth proportional to 67,591.60, 101,392.64 and 20,203.41 is: 30,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,591.60 : 101,392.64 = 20,203.41 : x
  2. Step 2: Convert to fraction form
    67,591.60/101,392.64 = 20,203.41/x
  3. Step 3: Cross multiply
    67,591.60x = 101,392.64 × 20,203.41
  4. Step 4: Simplify right side
    67,591.60x = 2,048,477,076.90
  5. Step 5: Solve for x
    x = 2,048,477,076.90/67,591.60
  6. Step 6: Final answer
    x = 30,306.68

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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.