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Finding the Fourth Proportional to 71,359.60, 107,040.60 and 27,007.24

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Solution

The fourth proportional to 71,359.60, 107,040.60 and 27,007.24 is: 40,511.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,359.60 : 107,040.60 = 27,007.24 : x
  2. Step 2: Convert to fraction form
    71,359.60/107,040.60 = 27,007.24/x
  3. Step 3: Cross multiply
    71,359.60x = 107,040.60 × 27,007.24
  4. Step 4: Simplify right side
    71,359.60x = 2,890,871,173.94
  5. Step 5: Solve for x
    x = 2,890,871,173.94/71,359.60
  6. Step 6: Final answer
    x = 40,511.31

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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.