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Finding the Fourth Proportional to 167,490.68, 251,216.22 and 55,143.32

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Solution

The fourth proportional to 167,490.68, 251,216.22 and 55,143.32 is: 82,708.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,490.68 : 251,216.22 = 55,143.32 : x
  2. Step 2: Convert to fraction form
    167,490.68/251,216.22 = 55,143.32/x
  3. Step 3: Cross multiply
    167,490.68x = 251,216.22 × 55,143.32
  4. Step 4: Simplify right side
    167,490.68x = 13,852,896,408.65
  5. Step 5: Solve for x
    x = 13,852,896,408.65/167,490.68
  6. Step 6: Final answer
    x = 82,708.46

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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.