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Finding the Fourth Proportional to 222,389, 333,618.06 and 74,679.56

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Solution

The fourth proportional to 222,389, 333,618.06 and 74,679.56 is: 112,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,389 : 333,618.06 = 74,679.56 : x
  2. Step 2: Convert to fraction form
    222,389/333,618.06 = 74,679.56/x
  3. Step 3: Cross multiply
    222,389x = 333,618.06 × 74,679.56
  4. Step 4: Simplify right side
    222,389x = 24,914,449,928.85
  5. Step 5: Solve for x
    x = 24,914,449,928.85/222,389
  6. Step 6: Final answer
    x = 112,030.95

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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.