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Finding the Fourth Proportional to 392,086.05, 588,190.65 and 167,447.67

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Solution

The fourth proportional to 392,086.05, 588,190.65 and 167,447.67 is: 251,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,086.05 : 588,190.65 = 167,447.67 : x
  2. Step 2: Convert to fraction form
    392,086.05/588,190.65 = 167,447.67/x
  3. Step 3: Cross multiply
    392,086.05x = 588,190.65 × 167,447.67
  4. Step 4: Simplify right side
    392,086.05x = 98,491,153,858.29
  5. Step 5: Solve for x
    x = 98,491,153,858.29/392,086.05
  6. Step 6: Final answer
    x = 251,197.80

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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.