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Finding the Fourth Proportional to 167,989.68, 251,978.21 and 41,630.29

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Solution

The fourth proportional to 167,989.68, 251,978.21 and 41,630.29 is: 62,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,989.68 : 251,978.21 = 41,630.29 : x
  2. Step 2: Convert to fraction form
    167,989.68/251,978.21 = 41,630.29/x
  3. Step 3: Cross multiply
    167,989.68x = 251,978.21 × 41,630.29
  4. Step 4: Simplify right side
    167,989.68x = 10,489,925,955.98
  5. Step 5: Solve for x
    x = 10,489,925,955.98/167,989.68
  6. Step 6: Final answer
    x = 62,443.87

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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.