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Finding the Fourth Proportional to 183,480.40, 274,961.40 and 135,722.80

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Solution

The fourth proportional to 183,480.40, 274,961.40 and 135,722.80 is: 203,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,480.40 : 274,961.40 = 135,722.80 : x
  2. Step 2: Convert to fraction form
    183,480.40/274,961.40 = 135,722.80/x
  3. Step 3: Cross multiply
    183,480.40x = 274,961.40 × 135,722.80
  4. Step 4: Simplify right side
    183,480.40x = 37,318,531,099.92
  5. Step 5: Solve for x
    x = 37,318,531,099.92/183,480.40
  6. Step 6: Final answer
    x = 203,392.47

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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.