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Finding the Fourth Proportional to 57,321.64, 85,861.26 and 36,250.84

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Solution

The fourth proportional to 57,321.64, 85,861.26 and 36,250.84 is: 54,299.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,321.64 : 85,861.26 = 36,250.84 : x
  2. Step 2: Convert to fraction form
    57,321.64/85,861.26 = 36,250.84/x
  3. Step 3: Cross multiply
    57,321.64x = 85,861.26 × 36,250.84
  4. Step 4: Simplify right side
    57,321.64x = 3,112,542,798.46
  5. Step 5: Solve for x
    x = 3,112,542,798.46/57,321.64
  6. Step 6: Final answer
    x = 54,299.61

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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.