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Finding the Fourth Proportional to 222,190.56, 333,320.40 and 74,412

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Solution

The fourth proportional to 222,190.56, 333,320.40 and 74,412 is: 111,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,190.56 : 333,320.40 = 74,412 : x
  2. Step 2: Convert to fraction form
    222,190.56/333,320.40 = 74,412/x
  3. Step 3: Cross multiply
    222,190.56x = 333,320.40 × 74,412
  4. Step 4: Simplify right side
    222,190.56x = 24,803,037,604.80
  5. Step 5: Solve for x
    x = 24,803,037,604.80/222,190.56
  6. Step 6: Final answer
    x = 111,629.57

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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.