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Finding the Fourth Proportional to 49,231.70, 73,738.20 and 40,483.70

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Solution

The fourth proportional to 49,231.70, 73,738.20 and 40,483.70 is: 60,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,231.70 : 73,738.20 = 40,483.70 : x
  2. Step 2: Convert to fraction form
    49,231.70/73,738.20 = 40,483.70/x
  3. Step 3: Cross multiply
    49,231.70x = 73,738.20 × 40,483.70
  4. Step 4: Simplify right side
    49,231.70x = 2,985,195,167.34
  5. Step 5: Solve for x
    x = 2,985,195,167.34/49,231.70
  6. Step 6: Final answer
    x = 60,635.63

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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.