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Finding the Fourth Proportional to 189,181.89, 283,814.37 and 56,072.61

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Solution

The fourth proportional to 189,181.89, 283,814.37 and 56,072.61 is: 84,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,181.89 : 283,814.37 = 56,072.61 : x
  2. Step 2: Convert to fraction form
    189,181.89/283,814.37 = 56,072.61/x
  3. Step 3: Cross multiply
    189,181.89x = 283,814.37 × 56,072.61
  4. Step 4: Simplify right side
    189,181.89x = 15,914,212,481.41
  5. Step 5: Solve for x
    x = 15,914,212,481.41/189,181.89
  6. Step 6: Final answer
    x = 84,121.23

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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.