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Finding the Fourth Proportional to 308,098.22, 425,102.69 and 178,959.97

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Solution

The fourth proportional to 308,098.22, 425,102.69 and 178,959.97 is: 246,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,098.22 : 425,102.69 = 178,959.97 : x
  2. Step 2: Convert to fraction form
    308,098.22/425,102.69 = 178,959.97/x
  3. Step 3: Cross multiply
    308,098.22x = 425,102.69 × 178,959.97
  4. Step 4: Simplify right side
    308,098.22x = 76,076,362,691.76
  5. Step 5: Solve for x
    x = 76,076,362,691.76/308,098.22
  6. Step 6: Final answer
    x = 246,922.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.