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Finding the Fourth Proportional to 118,991.42, 178,503.83 and 34,757.76

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Solution

The fourth proportional to 118,991.42, 178,503.83 and 34,757.76 is: 52,141.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,991.42 : 178,503.83 = 34,757.76 : x
  2. Step 2: Convert to fraction form
    118,991.42/178,503.83 = 34,757.76/x
  3. Step 3: Cross multiply
    118,991.42x = 178,503.83 × 34,757.76
  4. Step 4: Simplify right side
    118,991.42x = 6,204,393,108.43
  5. Step 5: Solve for x
    x = 6,204,393,108.43/118,991.42
  6. Step 6: Final answer
    x = 52,141.52

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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.