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Finding the Fourth Proportional to 71,196.76, 106,839.06 and 36,161.56

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Solution

The fourth proportional to 71,196.76, 106,839.06 and 36,161.56 is: 54,264.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,196.76 : 106,839.06 = 36,161.56 : x
  2. Step 2: Convert to fraction form
    71,196.76/106,839.06 = 36,161.56/x
  3. Step 3: Cross multiply
    71,196.76x = 106,839.06 × 36,161.56
  4. Step 4: Simplify right side
    71,196.76x = 3,863,467,078.53
  5. Step 5: Solve for x
    x = 3,863,467,078.53/71,196.76
  6. Step 6: Final answer
    x = 54,264.65

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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.