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Finding the Fourth Proportional to 73,620.37, 110,212.39 and 45,449.85

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Solution

The fourth proportional to 73,620.37, 110,212.39 and 45,449.85 is: 68,040.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,620.37 : 110,212.39 = 45,449.85 : x
  2. Step 2: Convert to fraction form
    73,620.37/110,212.39 = 45,449.85/x
  3. Step 3: Cross multiply
    73,620.37x = 110,212.39 × 45,449.85
  4. Step 4: Simplify right side
    73,620.37x = 5,009,136,593.64
  5. Step 5: Solve for x
    x = 5,009,136,593.64/73,620.37
  6. Step 6: Final answer
    x = 68,040.09

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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.