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Finding the Fourth Proportional to 71,743.79, 107,634.18 and 29,630.37

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Solution

The fourth proportional to 71,743.79, 107,634.18 and 29,630.37 is: 44,453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,743.79 : 107,634.18 = 29,630.37 : x
  2. Step 2: Convert to fraction form
    71,743.79/107,634.18 = 29,630.37/x
  3. Step 3: Cross multiply
    71,743.79x = 107,634.18 × 29,630.37
  4. Step 4: Simplify right side
    71,743.79x = 3,189,240,578.05
  5. Step 5: Solve for x
    x = 3,189,240,578.05/71,743.79
  6. Step 6: Final answer
    x = 44,453.19

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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.