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Finding the Fourth Proportional to 263,732.80, 395,890.80 and 164,005.60

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Solution

The fourth proportional to 263,732.80, 395,890.80 and 164,005.60 is: 246,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,732.80 : 395,890.80 = 164,005.60 : x
  2. Step 2: Convert to fraction form
    263,732.80/395,890.80 = 164,005.60/x
  3. Step 3: Cross multiply
    263,732.80x = 395,890.80 × 164,005.60
  4. Step 4: Simplify right side
    263,732.80x = 64,928,308,188.48
  5. Step 5: Solve for x
    x = 64,928,308,188.48/263,732.80
  6. Step 6: Final answer
    x = 246,189.74

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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.