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Finding the Fourth Proportional to 167,960.88, 251,798.40 and 74,415.60

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Solution

The fourth proportional to 167,960.88, 251,798.40 and 74,415.60 is: 111,560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,960.88 : 251,798.40 = 74,415.60 : x
  2. Step 2: Convert to fraction form
    167,960.88/251,798.40 = 74,415.60/x
  3. Step 3: Cross multiply
    167,960.88x = 251,798.40 × 74,415.60
  4. Step 4: Simplify right side
    167,960.88x = 18,737,729,015.04
  5. Step 5: Solve for x
    x = 18,737,729,015.04/167,960.88
  6. Step 6: Final answer
    x = 111,560.08

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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.