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Finding the Fourth Proportional to 396,019.93, 593,833.36 and 126,112.89

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Solution

The fourth proportional to 396,019.93, 593,833.36 and 126,112.89 is: 189,106.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,019.93 : 593,833.36 = 126,112.89 : x
  2. Step 2: Convert to fraction form
    396,019.93/593,833.36 = 126,112.89/x
  3. Step 3: Cross multiply
    396,019.93x = 593,833.36 × 126,112.89
  4. Step 4: Simplify right side
    396,019.93x = 74,890,041,208.01
  5. Step 5: Solve for x
    x = 74,890,041,208.01/396,019.93
  6. Step 6: Final answer
    x = 189,106.75

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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.