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Finding the Fourth Proportional to 71,900.52, 107,865.36 and 27,528.72

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Solution

The fourth proportional to 71,900.52, 107,865.36 and 27,528.72 is: 41,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,900.52 : 107,865.36 = 27,528.72 : x
  2. Step 2: Convert to fraction form
    71,900.52/107,865.36 = 27,528.72/x
  3. Step 3: Cross multiply
    71,900.52x = 107,865.36 × 27,528.72
  4. Step 4: Simplify right side
    71,900.52x = 2,969,395,293.14
  5. Step 5: Solve for x
    x = 2,969,395,293.14/71,900.52
  6. Step 6: Final answer
    x = 41,298.66

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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.