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Finding the Fourth Proportional to 259,846.78, 358,589.76 and 140,614.78

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Solution

The fourth proportional to 259,846.78, 358,589.76 and 140,614.78 is: 194,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,846.78 : 358,589.76 = 140,614.78 : x
  2. Step 2: Convert to fraction form
    259,846.78/358,589.76 = 140,614.78/x
  3. Step 3: Cross multiply
    259,846.78x = 358,589.76 × 140,614.78
  4. Step 4: Simplify right side
    259,846.78x = 50,423,020,212.65
  5. Step 5: Solve for x
    x = 50,423,020,212.65/259,846.78
  6. Step 6: Final answer
    x = 194,049.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.