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Finding the Fourth Proportional to 192,795.67, 289,146.93 and 74,391.49

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Solution

The fourth proportional to 192,795.67, 289,146.93 and 74,391.49 is: 111,569.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,795.67 : 289,146.93 = 74,391.49 : x
  2. Step 2: Convert to fraction form
    192,795.67/289,146.93 = 74,391.49/x
  3. Step 3: Cross multiply
    192,795.67x = 289,146.93 × 74,391.49
  4. Step 4: Simplify right side
    192,795.67x = 21,510,070,951.63
  5. Step 5: Solve for x
    x = 21,510,070,951.63/192,795.67
  6. Step 6: Final answer
    x = 111,569.26

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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.