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Finding the Fourth Proportional to 150,496.58, 207,691.80 and 85,976.44

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Solution

The fourth proportional to 150,496.58, 207,691.80 and 85,976.44 is: 118,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,496.58 : 207,691.80 = 85,976.44 : x
  2. Step 2: Convert to fraction form
    150,496.58/207,691.80 = 85,976.44/x
  3. Step 3: Cross multiply
    150,496.58x = 207,691.80 × 85,976.44
  4. Step 4: Simplify right side
    150,496.58x = 17,856,600,739.55
  5. Step 5: Solve for x
    x = 17,856,600,739.55/150,496.58
  6. Step 6: Final answer
    x = 118,651.20

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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.