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Finding the Fourth Proportional to 250,591.10, 375,948.21 and 73,099.85

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Solution

The fourth proportional to 250,591.10, 375,948.21 and 73,099.85 is: 109,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,591.10 : 375,948.21 = 73,099.85 : x
  2. Step 2: Convert to fraction form
    250,591.10/375,948.21 = 73,099.85/x
  3. Step 3: Cross multiply
    250,591.10x = 375,948.21 × 73,099.85
  4. Step 4: Simplify right side
    250,591.10x = 27,481,757,758.77
  5. Step 5: Solve for x
    x = 27,481,757,758.77/250,591.10
  6. Step 6: Final answer
    x = 109,667.73

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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.