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Finding the Fourth Proportional to 167,321.88, 250,982.82 and 42,662.88

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Solution

The fourth proportional to 167,321.88, 250,982.82 and 42,662.88 is: 63,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,321.88 : 250,982.82 = 42,662.88 : x
  2. Step 2: Convert to fraction form
    167,321.88/250,982.82 = 42,662.88/x
  3. Step 3: Cross multiply
    167,321.88x = 250,982.82 × 42,662.88
  4. Step 4: Simplify right side
    167,321.88x = 10,707,649,931.72
  5. Step 5: Solve for x
    x = 10,707,649,931.72/167,321.88
  6. Step 6: Final answer
    x = 63,994.32

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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.