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Finding the Fourth Proportional to 79,603.44, 109,855.92 and 43,796.40

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Solution

The fourth proportional to 79,603.44, 109,855.92 and 43,796.40 is: 60,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,603.44 : 109,855.92 = 43,796.40 : x
  2. Step 2: Convert to fraction form
    79,603.44/109,855.92 = 43,796.40/x
  3. Step 3: Cross multiply
    79,603.44x = 109,855.92 × 43,796.40
  4. Step 4: Simplify right side
    79,603.44x = 4,811,293,814.69
  5. Step 5: Solve for x
    x = 4,811,293,814.69/79,603.44
  6. Step 6: Final answer
    x = 60,440.78

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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.