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Finding the Fourth Proportional to 311,958.20, 467,937.30 and 101,617.40

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Solution

The fourth proportional to 311,958.20, 467,937.30 and 101,617.40 is: 152,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,958.20 : 467,937.30 = 101,617.40 : x
  2. Step 2: Convert to fraction form
    311,958.20/467,937.30 = 101,617.40/x
  3. Step 3: Cross multiply
    311,958.20x = 467,937.30 × 101,617.40
  4. Step 4: Simplify right side
    311,958.20x = 47,550,571,789.02
  5. Step 5: Solve for x
    x = 47,550,571,789.02/311,958.20
  6. Step 6: Final answer
    x = 152,426.10

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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.