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Finding the Fourth Proportional to 192,724.34, 289,086.50 and 66,367.69

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Solution

The fourth proportional to 192,724.34, 289,086.50 and 66,367.69 is: 99,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,724.34 : 289,086.50 = 66,367.69 : x
  2. Step 2: Convert to fraction form
    192,724.34/289,086.50 = 66,367.69/x
  3. Step 3: Cross multiply
    192,724.34x = 289,086.50 × 66,367.69
  4. Step 4: Simplify right side
    192,724.34x = 19,186,002,658.39
  5. Step 5: Solve for x
    x = 19,186,002,658.39/192,724.34
  6. Step 6: Final answer
    x = 99,551.53

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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.