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Finding the Fourth Proportional to 449,885.60, 675,087.60 and 169,431.20

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Solution

The fourth proportional to 449,885.60, 675,087.60 and 169,431.20 is: 254,244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,885.60 : 675,087.60 = 169,431.20 : x
  2. Step 2: Convert to fraction form
    449,885.60/675,087.60 = 169,431.20/x
  3. Step 3: Cross multiply
    449,885.60x = 675,087.60 × 169,431.20
  4. Step 4: Simplify right side
    449,885.60x = 114,380,902,173.12
  5. Step 5: Solve for x
    x = 114,380,902,173.12/449,885.60
  6. Step 6: Final answer
    x = 254,244.42

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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.