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Finding the Fourth Proportional to 64,861.59, 89,509.14 and 36,183.96

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Solution

The fourth proportional to 64,861.59, 89,509.14 and 36,183.96 is: 49,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,861.59 : 89,509.14 = 36,183.96 : x
  2. Step 2: Convert to fraction form
    64,861.59/89,509.14 = 36,183.96/x
  3. Step 3: Cross multiply
    64,861.59x = 89,509.14 × 36,183.96
  4. Step 4: Simplify right side
    64,861.59x = 3,238,795,141.39
  5. Step 5: Solve for x
    x = 3,238,795,141.39/64,861.59
  6. Step 6: Final answer
    x = 49,933.95

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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.