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Finding the Fourth Proportional to 222,396.60, 333,627.30 and 72,643.80

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Solution

The fourth proportional to 222,396.60, 333,627.30 and 72,643.80 is: 108,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,396.60 : 333,627.30 = 72,643.80 : x
  2. Step 2: Convert to fraction form
    222,396.60/333,627.30 = 72,643.80/x
  3. Step 3: Cross multiply
    222,396.60x = 333,627.30 × 72,643.80
  4. Step 4: Simplify right side
    222,396.60x = 24,235,954,855.74
  5. Step 5: Solve for x
    x = 24,235,954,855.74/222,396.60
  6. Step 6: Final answer
    x = 108,976.28

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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.