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Finding the Fourth Proportional to 323,905.20, 485,857.80 and 182,187.60

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Solution

The fourth proportional to 323,905.20, 485,857.80 and 182,187.60 is: 273,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,905.20 : 485,857.80 = 182,187.60 : x
  2. Step 2: Convert to fraction form
    323,905.20/485,857.80 = 182,187.60/x
  3. Step 3: Cross multiply
    323,905.20x = 485,857.80 × 182,187.60
  4. Step 4: Simplify right side
    323,905.20x = 88,517,266,523.28
  5. Step 5: Solve for x
    x = 88,517,266,523.28/323,905.20
  6. Step 6: Final answer
    x = 273,281.40

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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.