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Finding the Fourth Proportional to 118,874.25, 178,185.69 and 43,946.28

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Solution

The fourth proportional to 118,874.25, 178,185.69 and 43,946.28 is: 65,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,874.25 : 178,185.69 = 43,946.28 : x
  2. Step 2: Convert to fraction form
    118,874.25/178,185.69 = 43,946.28/x
  3. Step 3: Cross multiply
    118,874.25x = 178,185.69 × 43,946.28
  4. Step 4: Simplify right side
    118,874.25x = 7,830,598,224.73
  5. Step 5: Solve for x
    x = 7,830,598,224.73/118,874.25
  6. Step 6: Final answer
    x = 65,872.96

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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.