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Finding the Fourth Proportional to 396,007.60, 593,136.60 and 159,228.40

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Solution

The fourth proportional to 396,007.60, 593,136.60 and 159,228.40 is: 238,490.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,007.60 : 593,136.60 = 159,228.40 : x
  2. Step 2: Convert to fraction form
    396,007.60/593,136.60 = 159,228.40/x
  3. Step 3: Cross multiply
    396,007.60x = 593,136.60 × 159,228.40
  4. Step 4: Simplify right side
    396,007.60x = 94,444,191,799.44
  5. Step 5: Solve for x
    x = 94,444,191,799.44/396,007.60
  6. Step 6: Final answer
    x = 238,490.86

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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.