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Finding the Fourth Proportional to 69,082.98, 103,668.07 and 39,558.48

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Solution

The fourth proportional to 69,082.98, 103,668.07 and 39,558.48 is: 59,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,082.98 : 103,668.07 = 39,558.48 : x
  2. Step 2: Convert to fraction form
    69,082.98/103,668.07 = 39,558.48/x
  3. Step 3: Cross multiply
    69,082.98x = 103,668.07 × 39,558.48
  4. Step 4: Simplify right side
    69,082.98x = 4,100,950,755.39
  5. Step 5: Solve for x
    x = 4,100,950,755.39/69,082.98
  6. Step 6: Final answer
    x = 59,362.68

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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.