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Finding the Fourth Proportional to 264,882.60, 396,978.30 and 122,711.40

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Solution

The fourth proportional to 264,882.60, 396,978.30 and 122,711.40 is: 183,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,882.60 : 396,978.30 = 122,711.40 : x
  2. Step 2: Convert to fraction form
    264,882.60/396,978.30 = 122,711.40/x
  3. Step 3: Cross multiply
    264,882.60x = 396,978.30 × 122,711.40
  4. Step 4: Simplify right side
    264,882.60x = 48,713,762,962.62
  5. Step 5: Solve for x
    x = 48,713,762,962.62/264,882.60
  6. Step 6: Final answer
    x = 183,906.99

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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.