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Finding the Fourth Proportional to 264,451.80, 396,736.02 and 86,951.64

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Solution

The fourth proportional to 264,451.80, 396,736.02 and 86,951.64 is: 130,446.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,451.80 : 396,736.02 = 86,951.64 : x
  2. Step 2: Convert to fraction form
    264,451.80/396,736.02 = 86,951.64/x
  3. Step 3: Cross multiply
    264,451.80x = 396,736.02 × 86,951.64
  4. Step 4: Simplify right side
    264,451.80x = 34,496,847,586.07
  5. Step 5: Solve for x
    x = 34,496,847,586.07/264,451.80
  6. Step 6: Final answer
    x = 130,446.64

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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.