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Finding the Fourth Proportional to 263,808.80, 396,004.80 and 164,081.60

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Solution

The fourth proportional to 263,808.80, 396,004.80 and 164,081.60 is: 246,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,808.80 : 396,004.80 = 164,081.60 : x
  2. Step 2: Convert to fraction form
    263,808.80/396,004.80 = 164,081.60/x
  3. Step 3: Cross multiply
    263,808.80x = 396,004.80 × 164,081.60
  4. Step 4: Simplify right side
    263,808.80x = 64,977,101,191.68
  5. Step 5: Solve for x
    x = 64,977,101,191.68/263,808.80
  6. Step 6: Final answer
    x = 246,303.77

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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.