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Finding the Fourth Proportional to 234,015.20, 350,893.20 and 100,872.80

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Solution

The fourth proportional to 234,015.20, 350,893.20 and 100,872.80 is: 151,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,015.20 : 350,893.20 = 100,872.80 : x
  2. Step 2: Convert to fraction form
    234,015.20/350,893.20 = 100,872.80/x
  3. Step 3: Cross multiply
    234,015.20x = 350,893.20 × 100,872.80
  4. Step 4: Simplify right side
    234,015.20x = 35,395,579,584.96
  5. Step 5: Solve for x
    x = 35,395,579,584.96/234,015.20
  6. Step 6: Final answer
    x = 151,253.34

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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.