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Finding the Fourth Proportional to 150,745.28, 225,822.27 and 87,432.38

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Solution

The fourth proportional to 150,745.28, 225,822.27 and 87,432.38 is: 130,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,745.28 : 225,822.27 = 87,432.38 : x
  2. Step 2: Convert to fraction form
    150,745.28/225,822.27 = 87,432.38/x
  3. Step 3: Cross multiply
    150,745.28x = 225,822.27 × 87,432.38
  4. Step 4: Simplify right side
    150,745.28x = 19,744,177,393.99
  5. Step 5: Solve for x
    x = 19,744,177,393.99/150,745.28
  6. Step 6: Final answer
    x = 130,977.09

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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.