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Finding the Fourth Proportional to 79,601.76, 109,852.08 and 43,791.84

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Solution

The fourth proportional to 79,601.76, 109,852.08 and 43,791.84 is: 60,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,601.76 : 109,852.08 = 43,791.84 : x
  2. Step 2: Convert to fraction form
    79,601.76/109,852.08 = 43,791.84/x
  3. Step 3: Cross multiply
    79,601.76x = 109,852.08 × 43,791.84
  4. Step 4: Simplify right side
    79,601.76x = 4,810,624,711.03
  5. Step 5: Solve for x
    x = 4,810,624,711.03/79,601.76
  6. Step 6: Final answer
    x = 60,433.65

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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.