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Finding the Fourth Proportional to 73,418.84, 110,163.54 and 40,137.56

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Solution

The fourth proportional to 73,418.84, 110,163.54 and 40,137.56 is: 60,225.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,418.84 : 110,163.54 = 40,137.56 : x
  2. Step 2: Convert to fraction form
    73,418.84/110,163.54 = 40,137.56/x
  3. Step 3: Cross multiply
    73,418.84x = 110,163.54 × 40,137.56
  4. Step 4: Simplify right side
    73,418.84x = 4,421,695,696.56
  5. Step 5: Solve for x
    x = 4,421,695,696.56/73,418.84
  6. Step 6: Final answer
    x = 60,225.63

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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.