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Finding the Fourth Proportional to 209,040.80, 313,042.80 and 167,568.80

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Solution

The fourth proportional to 209,040.80, 313,042.80 and 167,568.80 is: 250,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,040.80 : 313,042.80 = 167,568.80 : x
  2. Step 2: Convert to fraction form
    209,040.80/313,042.80 = 167,568.80/x
  3. Step 3: Cross multiply
    209,040.80x = 313,042.80 × 167,568.80
  4. Step 4: Simplify right side
    209,040.80x = 52,456,206,344.64
  5. Step 5: Solve for x
    x = 52,456,206,344.64/209,040.80
  6. Step 6: Final answer
    x = 250,937.65

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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.