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Finding the Fourth Proportional to 392,349.14, 588,529.19 and 111,866.39

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Solution

The fourth proportional to 392,349.14, 588,529.19 and 111,866.39 is: 167,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,349.14 : 588,529.19 = 111,866.39 : x
  2. Step 2: Convert to fraction form
    392,349.14/588,529.19 = 111,866.39/x
  3. Step 3: Cross multiply
    392,349.14x = 588,529.19 × 111,866.39
  4. Step 4: Simplify right side
    392,349.14x = 65,836,636,806.92
  5. Step 5: Solve for x
    x = 65,836,636,806.92/392,349.14
  6. Step 6: Final answer
    x = 167,801.15

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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.