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Finding the Fourth Proportional to 71,954.58, 99,324.69 and 54,101.44

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Solution

The fourth proportional to 71,954.58, 99,324.69 and 54,101.44 is: 74,680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,954.58 : 99,324.69 = 54,101.44 : x
  2. Step 2: Convert to fraction form
    71,954.58/99,324.69 = 54,101.44/x
  3. Step 3: Cross multiply
    71,954.58x = 99,324.69 × 54,101.44
  4. Step 4: Simplify right side
    71,954.58x = 5,373,608,756.55
  5. Step 5: Solve for x
    x = 5,373,608,756.55/71,954.58
  6. Step 6: Final answer
    x = 74,680.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.