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Finding the Fourth Proportional to 198,472.84, 274,035.42 and 122,094.60

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Solution

The fourth proportional to 198,472.84, 274,035.42 and 122,094.60 is: 168,578.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,472.84 : 274,035.42 = 122,094.60 : x
  2. Step 2: Convert to fraction form
    198,472.84/274,035.42 = 122,094.60/x
  3. Step 3: Cross multiply
    198,472.84x = 274,035.42 × 122,094.60
  4. Step 4: Simplify right side
    198,472.84x = 33,458,244,990.73
  5. Step 5: Solve for x
    x = 33,458,244,990.73/198,472.84
  6. Step 6: Final answer
    x = 168,578.46

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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.