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Finding the Fourth Proportional to 392,349.08, 588,529.09 and 111,866.33

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Solution

The fourth proportional to 392,349.08, 588,529.09 and 111,866.33 is: 167,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,349.08 : 588,529.09 = 111,866.33 : x
  2. Step 2: Convert to fraction form
    392,349.08/588,529.09 = 111,866.33/x
  3. Step 3: Cross multiply
    392,349.08x = 588,529.09 × 111,866.33
  4. Step 4: Simplify right side
    392,349.08x = 65,836,589,396.54
  5. Step 5: Solve for x
    x = 65,836,589,396.54/392,349.08
  6. Step 6: Final answer
    x = 167,801.05

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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.