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Finding the Fourth Proportional to 264,846.40, 396,934.80 and 106,986.40

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Solution

The fourth proportional to 264,846.40, 396,934.80 and 106,986.40 is: 160,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,846.40 : 396,934.80 = 106,986.40 : x
  2. Step 2: Convert to fraction form
    264,846.40/396,934.80 = 106,986.40/x
  3. Step 3: Cross multiply
    264,846.40x = 396,934.80 × 106,986.40
  4. Step 4: Simplify right side
    264,846.40x = 42,466,625,286.72
  5. Step 5: Solve for x
    x = 42,466,625,286.72/264,846.40
  6. Step 6: Final answer
    x = 160,344.36

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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.