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Finding the Fourth Proportional to 143,099.94, 214,649.91 and 49,605.69

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Solution

The fourth proportional to 143,099.94, 214,649.91 and 49,605.69 is: 74,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,099.94 : 214,649.91 = 49,605.69 : x
  2. Step 2: Convert to fraction form
    143,099.94/214,649.91 = 49,605.69/x
  3. Step 3: Cross multiply
    143,099.94x = 214,649.91 × 49,605.69
  4. Step 4: Simplify right side
    143,099.94x = 10,647,856,893.99
  5. Step 5: Solve for x
    x = 10,647,856,893.99/143,099.94
  6. Step 6: Final answer
    x = 74,408.54

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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.