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Finding the Fourth Proportional to 396,243, 594,362.45 and 96,725.15

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Solution

The fourth proportional to 396,243, 594,362.45 and 96,725.15 is: 145,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,243 : 594,362.45 = 96,725.15 : x
  2. Step 2: Convert to fraction form
    396,243/594,362.45 = 96,725.15/x
  3. Step 3: Cross multiply
    396,243x = 594,362.45 × 96,725.15
  4. Step 4: Simplify right side
    396,243x = 57,489,797,130.62
  5. Step 5: Solve for x
    x = 57,489,797,130.62/396,243
  6. Step 6: Final answer
    x = 145,087.22

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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.