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Finding the Fourth Proportional to 351,018.54, 526,607.04 and 111,147

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Solution

The fourth proportional to 351,018.54, 526,607.04 and 111,147 is: 166,745.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,018.54 : 526,607.04 = 111,147 : x
  2. Step 2: Convert to fraction form
    351,018.54/526,607.04 = 111,147/x
  3. Step 3: Cross multiply
    351,018.54x = 526,607.04 × 111,147
  4. Step 4: Simplify right side
    351,018.54x = 58,530,792,674.88
  5. Step 5: Solve for x
    x = 58,530,792,674.88/351,018.54
  6. Step 6: Final answer
    x = 166,745.59

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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.