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Finding the Fourth Proportional to 167,679.40, 251,810.70 and 88,947.40

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Solution

The fourth proportional to 167,679.40, 251,810.70 and 88,947.40 is: 133,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,679.40 : 251,810.70 = 88,947.40 : x
  2. Step 2: Convert to fraction form
    167,679.40/251,810.70 = 88,947.40/x
  3. Step 3: Cross multiply
    167,679.40x = 251,810.70 × 88,947.40
  4. Step 4: Simplify right side
    167,679.40x = 22,397,907,057.18
  5. Step 5: Solve for x
    x = 22,397,907,057.18/167,679.40
  6. Step 6: Final answer
    x = 133,575.78

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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.