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Finding the Fourth Proportional to 79,609.64, 109,857.84 and 43,797.38

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Solution

The fourth proportional to 79,609.64, 109,857.84 and 43,797.38 is: 60,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,609.64 : 109,857.84 = 43,797.38 : x
  2. Step 2: Convert to fraction form
    79,609.64/109,857.84 = 43,797.38/x
  3. Step 3: Cross multiply
    79,609.64x = 109,857.84 × 43,797.38
  4. Step 4: Simplify right side
    79,609.64x = 4,811,485,564.46
  5. Step 5: Solve for x
    x = 4,811,485,564.46/79,609.64
  6. Step 6: Final answer
    x = 60,438.48

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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.