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Finding the Fourth Proportional to 143,274.20, 214,911.30 and 44,778.20

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Solution

The fourth proportional to 143,274.20, 214,911.30 and 44,778.20 is: 67,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,274.20 : 214,911.30 = 44,778.20 : x
  2. Step 2: Convert to fraction form
    143,274.20/214,911.30 = 44,778.20/x
  3. Step 3: Cross multiply
    143,274.20x = 214,911.30 × 44,778.20
  4. Step 4: Simplify right side
    143,274.20x = 9,623,340,099.10
  5. Step 5: Solve for x
    x = 9,623,340,099.10/143,274.20
  6. Step 6: Final answer
    x = 67,167.29

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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.