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Finding the Fourth Proportional to 71,574.44, 98,772.21 and 39,743.26

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Solution

The fourth proportional to 71,574.44, 98,772.21 and 39,743.26 is: 54,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,574.44 : 98,772.21 = 39,743.26 : x
  2. Step 2: Convert to fraction form
    71,574.44/98,772.21 = 39,743.26/x
  3. Step 3: Cross multiply
    71,574.44x = 98,772.21 × 39,743.26
  4. Step 4: Simplify right side
    71,574.44x = 3,925,529,375.87
  5. Step 5: Solve for x
    x = 3,925,529,375.87/71,574.44
  6. Step 6: Final answer
    x = 54,845.41

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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.