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Finding the Fourth Proportional to 361,012.57, 541,531.40 and 171,375.23

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Solution

The fourth proportional to 361,012.57, 541,531.40 and 171,375.23 is: 257,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,012.57 : 541,531.40 = 171,375.23 : x
  2. Step 2: Convert to fraction form
    361,012.57/541,531.40 = 171,375.23/x
  3. Step 3: Cross multiply
    361,012.57x = 541,531.40 × 171,375.23
  4. Step 4: Simplify right side
    361,012.57x = 92,805,068,724.17
  5. Step 5: Solve for x
    x = 92,805,068,724.17/361,012.57
  6. Step 6: Final answer
    x = 257,068.80

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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.