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Finding the Fourth Proportional to 192,774.59, 289,173.22 and 74,446.55

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Solution

The fourth proportional to 192,774.59, 289,173.22 and 74,446.55 is: 111,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,774.59 : 289,173.22 = 74,446.55 : x
  2. Step 2: Convert to fraction form
    192,774.59/289,173.22 = 74,446.55/x
  3. Step 3: Cross multiply
    192,774.59x = 289,173.22 × 74,446.55
  4. Step 4: Simplify right side
    192,774.59x = 21,527,948,581.39
  5. Step 5: Solve for x
    x = 21,527,948,581.39/192,774.59
  6. Step 6: Final answer
    x = 111,674.20

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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.