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Finding the Fourth Proportional to 320,838.66, 481,236.21 and 110,624.22

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Solution

The fourth proportional to 320,838.66, 481,236.21 and 110,624.22 is: 165,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,838.66 : 481,236.21 = 110,624.22 : x
  2. Step 2: Convert to fraction form
    320,838.66/481,236.21 = 110,624.22/x
  3. Step 3: Cross multiply
    320,838.66x = 481,236.21 × 110,624.22
  4. Step 4: Simplify right side
    320,838.66x = 53,236,380,367.01
  5. Step 5: Solve for x
    x = 53,236,380,367.01/320,838.66
  6. Step 6: Final answer
    x = 165,928.82

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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.