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Finding the Fourth Proportional to 392,513.05, 588,626.79 and 167,889.91

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Solution

The fourth proportional to 392,513.05, 588,626.79 and 167,889.91 is: 251,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,513.05 : 588,626.79 = 167,889.91 : x
  2. Step 2: Convert to fraction form
    392,513.05/588,626.79 = 167,889.91/x
  3. Step 3: Cross multiply
    392,513.05x = 588,626.79 × 167,889.91
  4. Step 4: Simplify right side
    392,513.05x = 98,824,498,796.69
  5. Step 5: Solve for x
    x = 98,824,498,796.69/392,513.05
  6. Step 6: Final answer
    x = 251,773.79

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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.