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Finding the Fourth Proportional to 167,705.91, 251,600.78 and 55,392.53

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Solution

The fourth proportional to 167,705.91, 251,600.78 and 55,392.53 is: 83,102.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,705.91 : 251,600.78 = 55,392.53 : x
  2. Step 2: Convert to fraction form
    167,705.91/251,600.78 = 55,392.53/x
  3. Step 3: Cross multiply
    167,705.91x = 251,600.78 × 55,392.53
  4. Step 4: Simplify right side
    167,705.91x = 13,936,802,634.65
  5. Step 5: Solve for x
    x = 13,936,802,634.65/167,705.91
  6. Step 6: Final answer
    x = 83,102.63

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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.