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Finding the Fourth Proportional to 209,260.33, 313,787.52 and 67,072.25

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Solution

The fourth proportional to 209,260.33, 313,787.52 and 67,072.25 is: 100,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,260.33 : 313,787.52 = 67,072.25 : x
  2. Step 2: Convert to fraction form
    209,260.33/313,787.52 = 67,072.25/x
  3. Step 3: Cross multiply
    209,260.33x = 313,787.52 × 67,072.25
  4. Step 4: Simplify right side
    209,260.33x = 21,046,435,772.79
  5. Step 5: Solve for x
    x = 21,046,435,772.79/209,260.33
  6. Step 6: Final answer
    x = 100,575.37

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1.5x scale

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.