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Finding the Fourth Proportional to 451,805.54, 677,713.17 and 136,265.18

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Solution

The fourth proportional to 451,805.54, 677,713.17 and 136,265.18 is: 204,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,805.54 : 677,713.17 = 136,265.18 : x
  2. Step 2: Convert to fraction form
    451,805.54/677,713.17 = 136,265.18/x
  3. Step 3: Cross multiply
    451,805.54x = 677,713.17 × 136,265.18
  4. Step 4: Simplify right side
    451,805.54x = 92,348,707,098.42
  5. Step 5: Solve for x
    x = 92,348,707,098.42/451,805.54
  6. Step 6: Final answer
    x = 204,399.24

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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.