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Finding the Fourth Proportional to 79,167.48, 109,251.12 and 43,357.44

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Solution

The fourth proportional to 79,167.48, 109,251.12 and 43,357.44 is: 59,833.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,167.48 : 109,251.12 = 43,357.44 : x
  2. Step 2: Convert to fraction form
    79,167.48/109,251.12 = 43,357.44/x
  3. Step 3: Cross multiply
    79,167.48x = 109,251.12 × 43,357.44
  4. Step 4: Simplify right side
    79,167.48x = 4,736,848,880.33
  5. Step 5: Solve for x
    x = 4,736,848,880.33/79,167.48
  6. Step 6: Final answer
    x = 59,833.27

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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.