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Finding the Fourth Proportional to 323,374.83, 485,120.80 and 133,732.32

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Solution

The fourth proportional to 323,374.83, 485,120.80 and 133,732.32 is: 200,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,374.83 : 485,120.80 = 133,732.32 : x
  2. Step 2: Convert to fraction form
    323,374.83/485,120.80 = 133,732.32/x
  3. Step 3: Cross multiply
    323,374.83x = 485,120.80 × 133,732.32
  4. Step 4: Simplify right side
    323,374.83x = 64,876,327,659.97
  5. Step 5: Solve for x
    x = 64,876,327,659.97/323,374.83
  6. Step 6: Final answer
    x = 200,622.69

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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.