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Finding the Fourth Proportional to 71,969.94, 99,286.39 and 41,737.74

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Solution

The fourth proportional to 71,969.94, 99,286.39 and 41,737.74 is: 57,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,969.94 : 99,286.39 = 41,737.74 : x
  2. Step 2: Convert to fraction form
    71,969.94/99,286.39 = 41,737.74/x
  3. Step 3: Cross multiply
    71,969.94x = 99,286.39 × 41,737.74
  4. Step 4: Simplify right side
    71,969.94x = 4,143,989,192.98
  5. Step 5: Solve for x
    x = 4,143,989,192.98/71,969.94
  6. Step 6: Final answer
    x = 57,579.45

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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.