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Finding the Fourth Proportional to 263,604.36, 363,787.27 and 154,713.42

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Solution

The fourth proportional to 263,604.36, 363,787.27 and 154,713.42 is: 213,512.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,604.36 : 363,787.27 = 154,713.42 : x
  2. Step 2: Convert to fraction form
    263,604.36/363,787.27 = 154,713.42/x
  3. Step 3: Cross multiply
    263,604.36x = 363,787.27 × 154,713.42
  4. Step 4: Simplify right side
    263,604.36x = 56,282,772,394.48
  5. Step 5: Solve for x
    x = 56,282,772,394.48/263,604.36
  6. Step 6: Final answer
    x = 213,512.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.