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Finding the Fourth Proportional to 128,524.53, 192,755.74 and 49,588.41

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Solution

The fourth proportional to 128,524.53, 192,755.74 and 49,588.41 is: 74,370.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,524.53 : 192,755.74 = 49,588.41 : x
  2. Step 2: Convert to fraction form
    128,524.53/192,755.74 = 49,588.41/x
  3. Step 3: Cross multiply
    128,524.53x = 192,755.74 × 49,588.41
  4. Step 4: Simplify right side
    128,524.53x = 9,558,450,664.97
  5. Step 5: Solve for x
    x = 9,558,450,664.97/128,524.53
  6. Step 6: Final answer
    x = 74,370.63

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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.