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Finding the Fourth Proportional to 64,379.43, 96,444.60 and 36,213.90

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Solution

The fourth proportional to 64,379.43, 96,444.60 and 36,213.90 is: 54,250.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,379.43 : 96,444.60 = 36,213.90 : x
  2. Step 2: Convert to fraction form
    64,379.43/96,444.60 = 36,213.90/x
  3. Step 3: Cross multiply
    64,379.43x = 96,444.60 × 36,213.90
  4. Step 4: Simplify right side
    64,379.43x = 3,492,635,099.94
  5. Step 5: Solve for x
    x = 3,492,635,099.94/64,379.43
  6. Step 6: Final answer
    x = 54,250.79

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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.