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Finding the Fourth Proportional to 167,911.44, 251,866.86 and 115,161

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Solution

The fourth proportional to 167,911.44, 251,866.86 and 115,161 is: 172,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,911.44 : 251,866.86 = 115,161 : x
  2. Step 2: Convert to fraction form
    167,911.44/251,866.86 = 115,161/x
  3. Step 3: Cross multiply
    167,911.44x = 251,866.86 × 115,161
  4. Step 4: Simplify right side
    167,911.44x = 29,005,239,464.46
  5. Step 5: Solve for x
    x = 29,005,239,464.46/167,911.44
  6. Step 6: Final answer
    x = 172,741.29

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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.