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Finding the Fourth Proportional to 71,367.76, 107,046.24 and 26,990.56

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Solution

The fourth proportional to 71,367.76, 107,046.24 and 26,990.56 is: 40,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,367.76 : 107,046.24 = 26,990.56 : x
  2. Step 2: Convert to fraction form
    71,367.76/107,046.24 = 26,990.56/x
  3. Step 3: Cross multiply
    71,367.76x = 107,046.24 × 26,990.56
  4. Step 4: Simplify right side
    71,367.76x = 2,889,237,963.49
  5. Step 5: Solve for x
    x = 2,889,237,963.49/71,367.76
  6. Step 6: Final answer
    x = 40,483.80

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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.