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Finding the Fourth Proportional to 69,737.91, 104,605.95 and 17,147.85

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Solution

The fourth proportional to 69,737.91, 104,605.95 and 17,147.85 is: 25,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,737.91 : 104,605.95 = 17,147.85 : x
  2. Step 2: Convert to fraction form
    69,737.91/104,605.95 = 17,147.85/x
  3. Step 3: Cross multiply
    69,737.91x = 104,605.95 × 17,147.85
  4. Step 4: Simplify right side
    69,737.91x = 1,793,766,878.19
  5. Step 5: Solve for x
    x = 1,793,766,878.19/69,737.91
  6. Step 6: Final answer
    x = 25,721.55

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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.