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Finding the Fourth Proportional to 222,118.56, 333,143.28 and 74,340

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Solution

The fourth proportional to 222,118.56, 333,143.28 and 74,340 is: 111,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,118.56 : 333,143.28 = 74,340 : x
  2. Step 2: Convert to fraction form
    222,118.56/333,143.28 = 74,340/x
  3. Step 3: Cross multiply
    222,118.56x = 333,143.28 × 74,340
  4. Step 4: Simplify right side
    222,118.56x = 24,765,871,435.20
  5. Step 5: Solve for x
    x = 24,765,871,435.20/222,118.56
  6. Step 6: Final answer
    x = 111,498.43

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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.