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Finding the Fourth Proportional to 366,825.60, 550,511.78 and 189,241.20

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Solution

The fourth proportional to 366,825.60, 550,511.78 and 189,241.20 is: 284,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,825.60 : 550,511.78 = 189,241.20 : x
  2. Step 2: Convert to fraction form
    366,825.60/550,511.78 = 189,241.20/x
  3. Step 3: Cross multiply
    366,825.60x = 550,511.78 × 189,241.20
  4. Step 4: Simplify right side
    366,825.60x = 104,179,508,915.13
  5. Step 5: Solve for x
    x = 104,179,508,915.13/366,825.60
  6. Step 6: Final answer
    x = 284,002.83

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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.