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Finding the Fourth Proportional to 69,136.44, 103,699.65 and 27,008.61

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Solution

The fourth proportional to 69,136.44, 103,699.65 and 27,008.61 is: 40,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,136.44 : 103,699.65 = 27,008.61 : x
  2. Step 2: Convert to fraction form
    69,136.44/103,699.65 = 27,008.61/x
  3. Step 3: Cross multiply
    69,136.44x = 103,699.65 × 27,008.61
  4. Step 4: Simplify right side
    69,136.44x = 2,800,783,403.99
  5. Step 5: Solve for x
    x = 2,800,783,403.99/69,136.44
  6. Step 6: Final answer
    x = 40,510.96

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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.