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Finding the Fourth Proportional to 75,369.87, 104,029.21 and 43,557.22

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Solution

The fourth proportional to 75,369.87, 104,029.21 and 43,557.22 is: 60,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,369.87 : 104,029.21 = 43,557.22 : x
  2. Step 2: Convert to fraction form
    75,369.87/104,029.21 = 43,557.22/x
  3. Step 3: Cross multiply
    75,369.87x = 104,029.21 × 43,557.22
  4. Step 4: Simplify right side
    75,369.87x = 4,531,223,078.30
  5. Step 5: Solve for x
    x = 4,531,223,078.30/75,369.87
  6. Step 6: Final answer
    x = 60,119.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.