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Finding the Fourth Proportional to 79,179.49, 109,269.27 and 43,369.51

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Solution

The fourth proportional to 79,179.49, 109,269.27 and 43,369.51 is: 59,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,179.49 : 109,269.27 = 43,369.51 : x
  2. Step 2: Convert to fraction form
    79,179.49/109,269.27 = 43,369.51/x
  3. Step 3: Cross multiply
    79,179.49x = 109,269.27 × 43,369.51
  4. Step 4: Simplify right side
    79,179.49x = 4,738,954,697.96
  5. Step 5: Solve for x
    x = 4,738,954,697.96/79,179.49
  6. Step 6: Final answer
    x = 59,850.79

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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.