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Finding the Fourth Proportional to 396,030.72, 594,074.24 and 159,374.72

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Solution

The fourth proportional to 396,030.72, 594,074.24 and 159,374.72 is: 239,073.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,030.72 : 594,074.24 = 159,374.72 : x
  2. Step 2: Convert to fraction form
    396,030.72/594,074.24 = 159,374.72/x
  3. Step 3: Cross multiply
    396,030.72x = 594,074.24 × 159,374.72
  4. Step 4: Simplify right side
    396,030.72x = 94,680,415,659.21
  5. Step 5: Solve for x
    x = 94,680,415,659.21/396,030.72
  6. Step 6: Final answer
    x = 239,073.41

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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.