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Finding the Fourth Proportional to 118,845.43, 178,264.48 and 48,671.89

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Solution

The fourth proportional to 118,845.43, 178,264.48 and 48,671.89 is: 73,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,845.43 : 178,264.48 = 48,671.89 : x
  2. Step 2: Convert to fraction form
    118,845.43/178,264.48 = 48,671.89/x
  3. Step 3: Cross multiply
    118,845.43x = 178,264.48 × 48,671.89
  4. Step 4: Simplify right side
    118,845.43x = 8,676,469,161.47
  5. Step 5: Solve for x
    x = 8,676,469,161.47/118,845.43
  6. Step 6: Final answer
    x = 73,006.33

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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.