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Finding the Fourth Proportional to 100,591.43, 150,910.50 and 29,511.20

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Solution

The fourth proportional to 100,591.43, 150,910.50 and 29,511.20 is: 44,273.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,591.43 : 150,910.50 = 29,511.20 : x
  2. Step 2: Convert to fraction form
    100,591.43/150,910.50 = 29,511.20/x
  3. Step 3: Cross multiply
    100,591.43x = 150,910.50 × 29,511.20
  4. Step 4: Simplify right side
    100,591.43x = 4,453,549,420.67
  5. Step 5: Solve for x
    x = 4,453,549,420.67/100,591.43
  6. Step 6: Final answer
    x = 44,273.65

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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.