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Finding the Fourth Proportional to 69,305.94, 103,958.82 and 16,715.43

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Solution

The fourth proportional to 69,305.94, 103,958.82 and 16,715.43 is: 25,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,305.94 : 103,958.82 = 16,715.43 : x
  2. Step 2: Convert to fraction form
    69,305.94/103,958.82 = 16,715.43/x
  3. Step 3: Cross multiply
    69,305.94x = 103,958.82 × 16,715.43
  4. Step 4: Simplify right side
    69,305.94x = 1,737,716,378.59
  5. Step 5: Solve for x
    x = 1,737,716,378.59/69,305.94
  6. Step 6: Final answer
    x = 25,073.12

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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.