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Finding the Fourth Proportional to 203,661.46, 305,494.44 and 61,507.96

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Solution

The fourth proportional to 203,661.46, 305,494.44 and 61,507.96 is: 92,262.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,661.46 : 305,494.44 = 61,507.96 : x
  2. Step 2: Convert to fraction form
    203,661.46/305,494.44 = 61,507.96/x
  3. Step 3: Cross multiply
    203,661.46x = 305,494.44 × 61,507.96
  4. Step 4: Simplify right side
    203,661.46x = 18,790,339,795.74
  5. Step 5: Solve for x
    x = 18,790,339,795.74/203,661.46
  6. Step 6: Final answer
    x = 92,262.62

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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.