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Finding the Fourth Proportional to 118,761.78, 178,154.32 and 34,522.59

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Solution

The fourth proportional to 118,761.78, 178,154.32 and 34,522.59 is: 51,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,761.78 : 178,154.32 = 34,522.59 : x
  2. Step 2: Convert to fraction form
    118,761.78/178,154.32 = 34,522.59/x
  3. Step 3: Cross multiply
    118,761.78x = 178,154.32 × 34,522.59
  4. Step 4: Simplify right side
    118,761.78x = 6,150,348,546.09
  5. Step 5: Solve for x
    x = 6,150,348,546.09/118,761.78
  6. Step 6: Final answer
    x = 51,787.27

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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.