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Finding the Fourth Proportional to 207,924.80, 311,449.80 and 172,932.80

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Solution

The fourth proportional to 207,924.80, 311,449.80 and 172,932.80 is: 259,035.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,924.80 : 311,449.80 = 172,932.80 : x
  2. Step 2: Convert to fraction form
    207,924.80/311,449.80 = 172,932.80/x
  3. Step 3: Cross multiply
    207,924.80x = 311,449.80 × 172,932.80
  4. Step 4: Simplify right side
    207,924.80x = 53,859,885,973.44
  5. Step 5: Solve for x
    x = 53,859,885,973.44/207,924.80
  6. Step 6: Final answer
    x = 259,035.41

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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.