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Finding the Fourth Proportional to 177,991.72, 267,172.10 and 119,237.96

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Solution

The fourth proportional to 177,991.72, 267,172.10 and 119,237.96 is: 178,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,991.72 : 267,172.10 = 119,237.96 : x
  2. Step 2: Convert to fraction form
    177,991.72/267,172.10 = 119,237.96/x
  3. Step 3: Cross multiply
    177,991.72x = 267,172.10 × 119,237.96
  4. Step 4: Simplify right side
    177,991.72x = 31,857,056,172.92
  5. Step 5: Solve for x
    x = 31,857,056,172.92/177,991.72
  6. Step 6: Final answer
    x = 178,980.55

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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.