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Finding the Fourth Proportional to 73,438.40, 110,173.80 and 23,520.80

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Solution

The fourth proportional to 73,438.40, 110,173.80 and 23,520.80 is: 35,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,438.40 : 110,173.80 = 23,520.80 : x
  2. Step 2: Convert to fraction form
    73,438.40/110,173.80 = 23,520.80/x
  3. Step 3: Cross multiply
    73,438.40x = 110,173.80 × 23,520.80
  4. Step 4: Simplify right side
    73,438.40x = 2,591,375,915.04
  5. Step 5: Solve for x
    x = 2,591,375,915.04/73,438.40
  6. Step 6: Final answer
    x = 35,286.39

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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.