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Finding the Fourth Proportional to 222,400.35, 333,621 and 72,641.43

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Solution

The fourth proportional to 222,400.35, 333,621 and 72,641.43 is: 108,968.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,400.35 : 333,621 = 72,641.43 : x
  2. Step 2: Convert to fraction form
    222,400.35/333,621 = 72,641.43/x
  3. Step 3: Cross multiply
    222,400.35x = 333,621 × 72,641.43
  4. Step 4: Simplify right side
    222,400.35x = 24,234,706,518.03
  5. Step 5: Solve for x
    x = 24,234,706,518.03/222,400.35
  6. Step 6: Final answer
    x = 108,968.83

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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.