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Finding the Fourth Proportional to 322,615.62, 483,912.50 and 122,928.84

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Solution

The fourth proportional to 322,615.62, 483,912.50 and 122,928.84 is: 184,389.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,615.62 : 483,912.50 = 122,928.84 : x
  2. Step 2: Convert to fraction form
    322,615.62/483,912.50 = 122,928.84/x
  3. Step 3: Cross multiply
    322,615.62x = 483,912.50 × 122,928.84
  4. Step 4: Simplify right side
    322,615.62x = 59,486,801,671.86
  5. Step 5: Solve for x
    x = 59,486,801,671.86/322,615.62
  6. Step 6: Final answer
    x = 184,389.09

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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.