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Finding the Fourth Proportional to 285,607.11, 394,181.22 and 182,285.90

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Solution

The fourth proportional to 285,607.11, 394,181.22 and 182,285.90 is: 251,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,607.11 : 394,181.22 = 182,285.90 : x
  2. Step 2: Convert to fraction form
    285,607.11/394,181.22 = 182,285.90/x
  3. Step 3: Cross multiply
    285,607.11x = 394,181.22 × 182,285.90
  4. Step 4: Simplify right side
    285,607.11x = 71,853,677,508.93
  5. Step 5: Solve for x
    x = 71,853,677,508.93/285,607.11
  6. Step 6: Final answer
    x = 251,582.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.