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Finding the Fourth Proportional to 43,141.99, 64,736.24 and 18,199.33

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Solution

The fourth proportional to 43,141.99, 64,736.24 and 18,199.33 is: 27,308.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,141.99 : 64,736.24 = 18,199.33 : x
  2. Step 2: Convert to fraction form
    43,141.99/64,736.24 = 18,199.33/x
  3. Step 3: Cross multiply
    43,141.99x = 64,736.24 × 18,199.33
  4. Step 4: Simplify right side
    43,141.99x = 1,178,156,194.72
  5. Step 5: Solve for x
    x = 1,178,156,194.72/43,141.99
  6. Step 6: Final answer
    x = 27,308.81

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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.