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Finding the Fourth Proportional to 79,704.99, 109,995.81 and 49,506.96

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Solution

The fourth proportional to 79,704.99, 109,995.81 and 49,506.96 is: 68,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,704.99 : 109,995.81 = 49,506.96 : x
  2. Step 2: Convert to fraction form
    79,704.99/109,995.81 = 49,506.96/x
  3. Step 3: Cross multiply
    79,704.99x = 109,995.81 × 49,506.96
  4. Step 4: Simplify right side
    79,704.99x = 5,445,558,165.84
  5. Step 5: Solve for x
    x = 5,445,558,165.84/79,704.99
  6. Step 6: Final answer
    x = 68,321.42

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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.