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Finding the Fourth Proportional to 451,310.36, 677,008.67 and 127,097.64

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Solution

The fourth proportional to 451,310.36, 677,008.67 and 127,097.64 is: 190,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,310.36 : 677,008.67 = 127,097.64 : x
  2. Step 2: Convert to fraction form
    451,310.36/677,008.67 = 127,097.64/x
  3. Step 3: Cross multiply
    451,310.36x = 677,008.67 × 127,097.64
  4. Step 4: Simplify right side
    451,310.36x = 86,046,203,581.05
  5. Step 5: Solve for x
    x = 86,046,203,581.05/451,310.36
  6. Step 6: Final answer
    x = 190,658.61

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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.