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Finding the Fourth Proportional to 164,791.30, 247,186.94 and 76,018.54

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Solution

The fourth proportional to 164,791.30, 247,186.94 and 76,018.54 is: 114,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,791.30 : 247,186.94 = 76,018.54 : x
  2. Step 2: Convert to fraction form
    164,791.30/247,186.94 = 76,018.54/x
  3. Step 3: Cross multiply
    164,791.30x = 247,186.94 × 76,018.54
  4. Step 4: Simplify right side
    164,791.30x = 18,790,789,049.93
  5. Step 5: Solve for x
    x = 18,790,789,049.93/164,791.30
  6. Step 6: Final answer
    x = 114,027.80

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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.