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Finding the Fourth Proportional to 150,603.20, 225,937.20 and 45,432.80

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Solution

The fourth proportional to 150,603.20, 225,937.20 and 45,432.80 is: 68,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,603.20 : 225,937.20 = 45,432.80 : x
  2. Step 2: Convert to fraction form
    150,603.20/225,937.20 = 45,432.80/x
  3. Step 3: Cross multiply
    150,603.20x = 225,937.20 × 45,432.80
  4. Step 4: Simplify right side
    150,603.20x = 10,264,959,620.16
  5. Step 5: Solve for x
    x = 10,264,959,620.16/150,603.20
  6. Step 6: Final answer
    x = 68,158.97

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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.