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Finding the Fourth Proportional to 209,132.80, 313,180.80 and 167,660.80

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Solution

The fourth proportional to 209,132.80, 313,180.80 and 167,660.80 is: 251,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,132.80 : 313,180.80 = 167,660.80 : x
  2. Step 2: Convert to fraction form
    209,132.80/313,180.80 = 167,660.80/x
  3. Step 3: Cross multiply
    209,132.80x = 313,180.80 × 167,660.80
  4. Step 4: Simplify right side
    209,132.80x = 52,508,143,472.64
  5. Step 5: Solve for x
    x = 52,508,143,472.64/209,132.80
  6. Step 6: Final answer
    x = 251,075.60

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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.