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Finding the Fourth Proportional to 419,900.44, 629,848.32 and 104,357.20

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Solution

The fourth proportional to 419,900.44, 629,848.32 and 104,357.20 is: 156,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,900.44 : 629,848.32 = 104,357.20 : x
  2. Step 2: Convert to fraction form
    419,900.44/629,848.32 = 104,357.20/x
  3. Step 3: Cross multiply
    419,900.44x = 629,848.32 × 104,357.20
  4. Step 4: Simplify right side
    419,900.44x = 65,729,207,099.90
  5. Step 5: Solve for x
    x = 65,729,207,099.90/419,900.44
  6. Step 6: Final answer
    x = 156,535.22

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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.