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Finding the Fourth Proportional to 73,453.80, 110,103.90 and 40,122.60

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Solution

The fourth proportional to 73,453.80, 110,103.90 and 40,122.60 is: 60,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,453.80 : 110,103.90 = 40,122.60 : x
  2. Step 2: Convert to fraction form
    73,453.80/110,103.90 = 40,122.60/x
  3. Step 3: Cross multiply
    73,453.80x = 110,103.90 × 40,122.60
  4. Step 4: Simplify right side
    73,453.80x = 4,417,654,738.14
  5. Step 5: Solve for x
    x = 4,417,654,738.14/73,453.80
  6. Step 6: Final answer
    x = 60,141.95

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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.