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Finding the Fourth Proportional to 207,216.80, 310,825.20 and 167,127.20

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Solution

The fourth proportional to 207,216.80, 310,825.20 and 167,127.20 is: 250,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,216.80 : 310,825.20 = 167,127.20 : x
  2. Step 2: Convert to fraction form
    207,216.80/310,825.20 = 167,127.20/x
  3. Step 3: Cross multiply
    207,216.80x = 310,825.20 × 167,127.20
  4. Step 4: Simplify right side
    207,216.80x = 51,947,345,365.44
  5. Step 5: Solve for x
    x = 51,947,345,365.44/207,216.80
  6. Step 6: Final answer
    x = 250,690.80

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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.