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Finding the Fourth Proportional to 263,840.80, 396,052.80 and 164,113.60

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Solution

The fourth proportional to 263,840.80, 396,052.80 and 164,113.60 is: 246,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,840.80 : 396,052.80 = 164,113.60 : x
  2. Step 2: Convert to fraction form
    263,840.80/396,052.80 = 164,113.60/x
  3. Step 3: Cross multiply
    263,840.80x = 396,052.80 × 164,113.60
  4. Step 4: Simplify right side
    263,840.80x = 64,997,650,798.08
  5. Step 5: Solve for x
    x = 64,997,650,798.08/263,840.80
  6. Step 6: Final answer
    x = 246,351.78

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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.