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Finding the Fourth Proportional to 69,942.99, 104,945.49 and 36,655.15

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Solution

The fourth proportional to 69,942.99, 104,945.49 and 36,655.15 is: 54,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,942.99 : 104,945.49 = 36,655.15 : x
  2. Step 2: Convert to fraction form
    69,942.99/104,945.49 = 36,655.15/x
  3. Step 3: Cross multiply
    69,942.99x = 104,945.49 × 36,655.15
  4. Step 4: Simplify right side
    69,942.99x = 3,846,792,677.77
  5. Step 5: Solve for x
    x = 3,846,792,677.77/69,942.99
  6. Step 6: Final answer
    x = 54,998.97

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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.