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Finding the Fourth Proportional to 222,408.40, 333,611.52 and 74,664.40

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Solution

The fourth proportional to 222,408.40, 333,611.52 and 74,664.40 is: 111,996.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,408.40 : 333,611.52 = 74,664.40 : x
  2. Step 2: Convert to fraction form
    222,408.40/333,611.52 = 74,664.40/x
  3. Step 3: Cross multiply
    222,408.40x = 333,611.52 × 74,664.40
  4. Step 4: Simplify right side
    222,408.40x = 24,908,903,973.89
  5. Step 5: Solve for x
    x = 24,908,903,973.89/222,408.40
  6. Step 6: Final answer
    x = 111,996.24

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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.