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Finding the Fourth Proportional to 199,612.20, 298,980.90 and 177,450.60

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Solution

The fourth proportional to 199,612.20, 298,980.90 and 177,450.60 is: 265,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,612.20 : 298,980.90 = 177,450.60 : x
  2. Step 2: Convert to fraction form
    199,612.20/298,980.90 = 177,450.60/x
  3. Step 3: Cross multiply
    199,612.20x = 298,980.90 × 177,450.60
  4. Step 4: Simplify right side
    199,612.20x = 53,054,340,093.54
  5. Step 5: Solve for x
    x = 53,054,340,093.54/199,612.20
  6. Step 6: Final answer
    x = 265,787.06

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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.