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Finding the Fourth Proportional to 275,181.20, 412,771.80 and 88,211.60

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Solution

The fourth proportional to 275,181.20, 412,771.80 and 88,211.60 is: 132,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,181.20 : 412,771.80 = 88,211.60 : x
  2. Step 2: Convert to fraction form
    275,181.20/412,771.80 = 88,211.60/x
  3. Step 3: Cross multiply
    275,181.20x = 412,771.80 × 88,211.60
  4. Step 4: Simplify right side
    275,181.20x = 36,411,260,912.88
  5. Step 5: Solve for x
    x = 36,411,260,912.88/275,181.20
  6. Step 6: Final answer
    x = 132,317.40

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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.