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Finding the Fourth Proportional to 177,989.72, 267,169.10 and 119,235.96

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Solution

The fourth proportional to 177,989.72, 267,169.10 and 119,235.96 is: 178,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,989.72 : 267,169.10 = 119,235.96 : x
  2. Step 2: Convert to fraction form
    177,989.72/267,169.10 = 119,235.96/x
  3. Step 3: Cross multiply
    177,989.72x = 267,169.10 × 119,235.96
  4. Step 4: Simplify right side
    177,989.72x = 31,856,163,524.66
  5. Step 5: Solve for x
    x = 31,856,163,524.66/177,989.72
  6. Step 6: Final answer
    x = 178,977.55

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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.