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Finding the Fourth Proportional to 71,953.56, 107,930.54 and 25,195.50

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Solution

The fourth proportional to 71,953.56, 107,930.54 and 25,195.50 is: 37,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,953.56 : 107,930.54 = 25,195.50 : x
  2. Step 2: Convert to fraction form
    71,953.56/107,930.54 = 25,195.50/x
  3. Step 3: Cross multiply
    71,953.56x = 107,930.54 × 25,195.50
  4. Step 4: Simplify right side
    71,953.56x = 2,719,363,920.57
  5. Step 5: Solve for x
    x = 2,719,363,920.57/71,953.56
  6. Step 6: Final answer
    x = 37,793.32

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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.