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Finding the Fourth Proportional to 118,704.34, 177,832.77 and 92,280.70

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Solution

The fourth proportional to 118,704.34, 177,832.77 and 92,280.70 is: 138,247.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,704.34 : 177,832.77 = 92,280.70 : x
  2. Step 2: Convert to fraction form
    118,704.34/177,832.77 = 92,280.70/x
  3. Step 3: Cross multiply
    118,704.34x = 177,832.77 × 92,280.70
  4. Step 4: Simplify right side
    118,704.34x = 16,410,532,498.54
  5. Step 5: Solve for x
    x = 16,410,532,498.54/118,704.34
  6. Step 6: Final answer
    x = 138,247.11

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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.