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Finding the Fourth Proportional to 167,427.36, 251,145.90 and 73,940.40

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Solution

The fourth proportional to 167,427.36, 251,145.90 and 73,940.40 is: 110,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,427.36 : 251,145.90 = 73,940.40 : x
  2. Step 2: Convert to fraction form
    167,427.36/251,145.90 = 73,940.40/x
  3. Step 3: Cross multiply
    167,427.36x = 251,145.90 × 73,940.40
  4. Step 4: Simplify right side
    167,427.36x = 18,569,828,304.36
  5. Step 5: Solve for x
    x = 18,569,828,304.36/167,427.36
  6. Step 6: Final answer
    x = 110,912.75

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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.