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Finding the Fourth Proportional to 322,149.40, 483,369.90 and 153,604.60

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Solution

The fourth proportional to 322,149.40, 483,369.90 and 153,604.60 is: 230,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,149.40 : 483,369.90 = 153,604.60 : x
  2. Step 2: Convert to fraction form
    322,149.40/483,369.90 = 153,604.60/x
  3. Step 3: Cross multiply
    322,149.40x = 483,369.90 × 153,604.60
  4. Step 4: Simplify right side
    322,149.40x = 74,247,840,141.54
  5. Step 5: Solve for x
    x = 74,247,840,141.54/322,149.40
  6. Step 6: Final answer
    x = 230,476.42

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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.