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Finding the Fourth Proportional to 79,606.87, 109,857.47 and 43,796.11

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Solution

The fourth proportional to 79,606.87, 109,857.47 and 43,796.11 is: 60,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,606.87 : 109,857.47 = 43,796.11 : x
  2. Step 2: Convert to fraction form
    79,606.87/109,857.47 = 43,796.11/x
  3. Step 3: Cross multiply
    79,606.87x = 109,857.47 × 43,796.11
  4. Step 4: Simplify right side
    79,606.87x = 4,811,329,922.33
  5. Step 5: Solve for x
    x = 4,811,329,922.33/79,606.87
  6. Step 6: Final answer
    x = 60,438.63

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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.