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Finding the Fourth Proportional to 69,185.70, 103,736.52 and 27,057.96

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Solution

The fourth proportional to 69,185.70, 103,736.52 and 27,057.96 is: 40,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,185.70 : 103,736.52 = 27,057.96 : x
  2. Step 2: Convert to fraction form
    69,185.70/103,736.52 = 27,057.96/x
  3. Step 3: Cross multiply
    69,185.70x = 103,736.52 × 27,057.96
  4. Step 4: Simplify right side
    69,185.70x = 2,806,898,608.70
  5. Step 5: Solve for x
    x = 2,806,898,608.70/69,185.70
  6. Step 6: Final answer
    x = 40,570.50

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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.