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Finding the Fourth Proportional to 68,950.32, 95,149.94 and 38,321.39

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Solution

The fourth proportional to 68,950.32, 95,149.94 and 38,321.39 is: 52,882.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,950.32 : 95,149.94 = 38,321.39 : x
  2. Step 2: Convert to fraction form
    68,950.32/95,149.94 = 38,321.39/x
  3. Step 3: Cross multiply
    68,950.32x = 95,149.94 × 38,321.39
  4. Step 4: Simplify right side
    68,950.32x = 3,646,277,291.86
  5. Step 5: Solve for x
    x = 3,646,277,291.86/68,950.32
  6. Step 6: Final answer
    x = 52,882.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.