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Finding the Fourth Proportional to 207,926.20, 311,889.30 and 194,804.20

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Solution

The fourth proportional to 207,926.20, 311,889.30 and 194,804.20 is: 292,206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,926.20 : 311,889.30 = 194,804.20 : x
  2. Step 2: Convert to fraction form
    207,926.20/311,889.30 = 194,804.20/x
  3. Step 3: Cross multiply
    207,926.20x = 311,889.30 × 194,804.20
  4. Step 4: Simplify right side
    207,926.20x = 60,757,345,575.06
  5. Step 5: Solve for x
    x = 60,757,345,575.06/207,926.20
  6. Step 6: Final answer
    x = 292,206.30

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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.