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Finding the Fourth Proportional to 166,992.72, 230,448.60 and 91,541.04

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Solution

The fourth proportional to 166,992.72, 230,448.60 and 91,541.04 is: 126,325.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,992.72 : 230,448.60 = 91,541.04 : x
  2. Step 2: Convert to fraction form
    166,992.72/230,448.60 = 91,541.04/x
  3. Step 3: Cross multiply
    166,992.72x = 230,448.60 × 91,541.04
  4. Step 4: Simplify right side
    166,992.72x = 21,095,504,510.54
  5. Step 5: Solve for x
    x = 21,095,504,510.54/166,992.72
  6. Step 6: Final answer
    x = 126,325.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.