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Finding the Fourth Proportional to 322,847.26, 483,949.55 and 154,170.40

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Solution

The fourth proportional to 322,847.26, 483,949.55 and 154,170.40 is: 231,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,847.26 : 483,949.55 = 154,170.40 : x
  2. Step 2: Convert to fraction form
    322,847.26/483,949.55 = 154,170.40/x
  3. Step 3: Cross multiply
    322,847.26x = 483,949.55 × 154,170.40
  4. Step 4: Simplify right side
    322,847.26x = 74,610,693,722.59
  5. Step 5: Solve for x
    x = 74,610,693,722.59/322,847.26
  6. Step 6: Final answer
    x = 231,102.15

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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.