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Finding the Fourth Proportional to 71,394.66, 107,107.02 and 27,020.43

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Solution

The fourth proportional to 71,394.66, 107,107.02 and 27,020.43 is: 40,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,394.66 : 107,107.02 = 27,020.43 : x
  2. Step 2: Convert to fraction form
    71,394.66/107,107.02 = 27,020.43/x
  3. Step 3: Cross multiply
    71,394.66x = 107,107.02 × 27,020.43
  4. Step 4: Simplify right side
    71,394.66x = 2,894,077,736.42
  5. Step 5: Solve for x
    x = 2,894,077,736.42/71,394.66
  6. Step 6: Final answer
    x = 40,536.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.