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Finding the Fourth Proportional to 167,170.68, 250,743.96 and 78,444.36

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Solution

The fourth proportional to 167,170.68, 250,743.96 and 78,444.36 is: 117,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,170.68 : 250,743.96 = 78,444.36 : x
  2. Step 2: Convert to fraction form
    167,170.68/250,743.96 = 78,444.36/x
  3. Step 3: Cross multiply
    167,170.68x = 250,743.96 × 78,444.36
  4. Step 4: Simplify right side
    167,170.68x = 19,669,449,466.07
  5. Step 5: Solve for x
    x = 19,669,449,466.07/167,170.68
  6. Step 6: Final answer
    x = 117,660.88

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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.