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Finding the Fourth Proportional to 240,936.72, 361,229.72 and 100,735.12

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Solution

The fourth proportional to 240,936.72, 361,229.72 and 100,735.12 is: 151,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,936.72 : 361,229.72 = 100,735.12 : x
  2. Step 2: Convert to fraction form
    240,936.72/361,229.72 = 100,735.12/x
  3. Step 3: Cross multiply
    240,936.72x = 361,229.72 × 100,735.12
  4. Step 4: Simplify right side
    240,936.72x = 36,388,519,191.77
  5. Step 5: Solve for x
    x = 36,388,519,191.77/240,936.72
  6. Step 6: Final answer
    x = 151,029.36

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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.