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Finding the Fourth Proportional to 164,077.20, 246,115.80 and 104,979.60

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Solution

The fourth proportional to 164,077.20, 246,115.80 and 104,979.60 is: 157,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,077.20 : 246,115.80 = 104,979.60 : x
  2. Step 2: Convert to fraction form
    164,077.20/246,115.80 = 104,979.60/x
  3. Step 3: Cross multiply
    164,077.20x = 246,115.80 × 104,979.60
  4. Step 4: Simplify right side
    164,077.20x = 25,837,138,237.68
  5. Step 5: Solve for x
    x = 25,837,138,237.68/164,077.20
  6. Step 6: Final answer
    x = 157,469.40

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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.