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Finding the Fourth Proportional to 167,540.30, 251,346.90 and 55,201.40

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Solution

The fourth proportional to 167,540.30, 251,346.90 and 55,201.40 is: 82,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,540.30 : 251,346.90 = 55,201.40 : x
  2. Step 2: Convert to fraction form
    167,540.30/251,346.90 = 55,201.40/x
  3. Step 3: Cross multiply
    167,540.30x = 251,346.90 × 55,201.40
  4. Step 4: Simplify right side
    167,540.30x = 13,874,700,765.66
  5. Step 5: Solve for x
    x = 13,874,700,765.66/167,540.30
  6. Step 6: Final answer
    x = 82,814.11

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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.