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Finding the Fourth Proportional to 493,274.79, 739,912.59 and 119,297.79

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Solution

The fourth proportional to 493,274.79, 739,912.59 and 119,297.79 is: 178,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,274.79 : 739,912.59 = 119,297.79 : x
  2. Step 2: Convert to fraction form
    493,274.79/739,912.59 = 119,297.79/x
  3. Step 3: Cross multiply
    493,274.79x = 739,912.59 × 119,297.79
  4. Step 4: Simplify right side
    493,274.79x = 88,269,936,780.18
  5. Step 5: Solve for x
    x = 88,269,936,780.18/493,274.79
  6. Step 6: Final answer
    x = 178,946.78

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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.