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Finding the Fourth Proportional to 71,322.69, 106,881.97 and 40,092.33

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Solution

The fourth proportional to 71,322.69, 106,881.97 and 40,092.33 is: 60,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,322.69 : 106,881.97 = 40,092.33 : x
  2. Step 2: Convert to fraction form
    71,322.69/106,881.97 = 40,092.33/x
  3. Step 3: Cross multiply
    71,322.69x = 106,881.97 × 40,092.33
  4. Step 4: Simplify right side
    71,322.69x = 4,285,147,212.29
  5. Step 5: Solve for x
    x = 4,285,147,212.29/71,322.69
  6. Step 6: Final answer
    x = 60,081.12

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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.