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Finding the Fourth Proportional to 167,940.40, 251,905.20 and 55,625.80

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Solution

The fourth proportional to 167,940.40, 251,905.20 and 55,625.80 is: 83,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,940.40 : 251,905.20 = 55,625.80 : x
  2. Step 2: Convert to fraction form
    167,940.40/251,905.20 = 55,625.80/x
  3. Step 3: Cross multiply
    167,940.40x = 251,905.20 × 55,625.80
  4. Step 4: Simplify right side
    167,940.40x = 14,012,428,274.16
  5. Step 5: Solve for x
    x = 14,012,428,274.16/167,940.40
  6. Step 6: Final answer
    x = 83,436.91

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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.