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Finding the Fourth Proportional to 168,761.20, 253,141.80 and 164,824.60

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Solution

The fourth proportional to 168,761.20, 253,141.80 and 164,824.60 is: 247,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,761.20 : 253,141.80 = 164,824.60 : x
  2. Step 2: Convert to fraction form
    168,761.20/253,141.80 = 164,824.60/x
  3. Step 3: Cross multiply
    168,761.20x = 253,141.80 × 164,824.60
  4. Step 4: Simplify right side
    168,761.20x = 41,723,995,928.28
  5. Step 5: Solve for x
    x = 41,723,995,928.28/168,761.20
  6. Step 6: Final answer
    x = 247,236.90

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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.