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Finding the Fourth Proportional to 71,629.33, 107,296.33 and 41,957.21

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Solution

The fourth proportional to 71,629.33, 107,296.33 and 41,957.21 is: 62,849.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,629.33 : 107,296.33 = 41,957.21 : x
  2. Step 2: Convert to fraction form
    71,629.33/107,296.33 = 41,957.21/x
  3. Step 3: Cross multiply
    71,629.33x = 107,296.33 × 41,957.21
  4. Step 4: Simplify right side
    71,629.33x = 4,501,854,650.04
  5. Step 5: Solve for x
    x = 4,501,854,650.04/71,629.33
  6. Step 6: Final answer
    x = 62,849.32

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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.