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Finding the Fourth Proportional to 396,276.93, 594,648.68 and 147,133.89

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Solution

The fourth proportional to 396,276.93, 594,648.68 and 147,133.89 is: 220,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,276.93 : 594,648.68 = 147,133.89 : x
  2. Step 2: Convert to fraction form
    396,276.93/594,648.68 = 147,133.89/x
  3. Step 3: Cross multiply
    396,276.93x = 594,648.68 × 147,133.89
  4. Step 4: Simplify right side
    396,276.93x = 87,492,972,736.10
  5. Step 5: Solve for x
    x = 87,492,972,736.10/396,276.93
  6. Step 6: Final answer
    x = 220,787.45

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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.