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Finding the Fourth Proportional to 71,958.69, 107,934.39 and 25,207.92

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Solution

The fourth proportional to 71,958.69, 107,934.39 and 25,207.92 is: 37,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,958.69 : 107,934.39 = 25,207.92 : x
  2. Step 2: Convert to fraction form
    71,958.69/107,934.39 = 25,207.92/x
  3. Step 3: Cross multiply
    71,958.69x = 107,934.39 × 25,207.92
  4. Step 4: Simplify right side
    71,958.69x = 2,720,801,468.37
  5. Step 5: Solve for x
    x = 2,720,801,468.37/71,958.69
  6. Step 6: Final answer
    x = 37,810.60

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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.