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Finding the Fourth Proportional to 67,199.78, 100,765.62 and 37,609.67

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Solution

The fourth proportional to 67,199.78, 100,765.62 and 37,609.67 is: 56,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,199.78 : 100,765.62 = 37,609.67 : x
  2. Step 2: Convert to fraction form
    67,199.78/100,765.62 = 37,609.67/x
  3. Step 3: Cross multiply
    67,199.78x = 100,765.62 × 37,609.67
  4. Step 4: Simplify right side
    67,199.78x = 3,789,761,211.72
  5. Step 5: Solve for x
    x = 3,789,761,211.72/67,199.78
  6. Step 6: Final answer
    x = 56,395.44

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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.