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Finding the Fourth Proportional to 167,966.70, 251,985.56 and 55,640.54

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Solution

The fourth proportional to 167,966.70, 251,985.56 and 55,640.54 is: 83,472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,966.70 : 251,985.56 = 55,640.54 : x
  2. Step 2: Convert to fraction form
    167,966.70/251,985.56 = 55,640.54/x
  3. Step 3: Cross multiply
    167,966.70x = 251,985.56 × 55,640.54
  4. Step 4: Simplify right side
    167,966.70x = 14,020,611,092.47
  5. Step 5: Solve for x
    x = 14,020,611,092.47/167,966.70
  6. Step 6: Final answer
    x = 83,472.56

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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.