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Finding the Fourth Proportional to 192,694.60, 289,092.30 and 74,369.80

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Solution

The fourth proportional to 192,694.60, 289,092.30 and 74,369.80 is: 111,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,694.60 : 289,092.30 = 74,369.80 : x
  2. Step 2: Convert to fraction form
    192,694.60/289,092.30 = 74,369.80/x
  3. Step 3: Cross multiply
    192,694.60x = 289,092.30 × 74,369.80
  4. Step 4: Simplify right side
    192,694.60x = 21,499,736,532.54
  5. Step 5: Solve for x
    x = 21,499,736,532.54/192,694.60
  6. Step 6: Final answer
    x = 111,574.15

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1.5x scale

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.