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Finding the Fourth Proportional to 100,843.55, 151,266.18 and 28,796.27

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Solution

The fourth proportional to 100,843.55, 151,266.18 and 28,796.27 is: 43,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,843.55 : 151,266.18 = 28,796.27 : x
  2. Step 2: Convert to fraction form
    100,843.55/151,266.18 = 28,796.27/x
  3. Step 3: Cross multiply
    100,843.55x = 151,266.18 × 28,796.27
  4. Step 4: Simplify right side
    100,843.55x = 4,355,902,247.30
  5. Step 5: Solve for x
    x = 4,355,902,247.30/100,843.55
  6. Step 6: Final answer
    x = 43,194.65

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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.