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Finding the Fourth Proportional to 118,936.54, 178,404.78 and 35,830.54

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Solution

The fourth proportional to 118,936.54, 178,404.78 and 35,830.54 is: 53,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,936.54 : 178,404.78 = 35,830.54 : x
  2. Step 2: Convert to fraction form
    118,936.54/178,404.78 = 35,830.54/x
  3. Step 3: Cross multiply
    118,936.54x = 178,404.78 × 35,830.54
  4. Step 4: Simplify right side
    118,936.54x = 6,392,339,605.98
  5. Step 5: Solve for x
    x = 6,392,339,605.98/118,936.54
  6. Step 6: Final answer
    x = 53,745.80

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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.