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Finding the Fourth Proportional to 268,791.84, 402,906.45 and 100,244.34

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Solution

The fourth proportional to 268,791.84, 402,906.45 and 100,244.34 is: 150,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,791.84 : 402,906.45 = 100,244.34 : x
  2. Step 2: Convert to fraction form
    268,791.84/402,906.45 = 100,244.34/x
  3. Step 3: Cross multiply
    268,791.84x = 402,906.45 × 100,244.34
  4. Step 4: Simplify right side
    268,791.84x = 40,389,091,161.99
  5. Step 5: Solve for x
    x = 40,389,091,161.99/268,791.84
  6. Step 6: Final answer
    x = 150,261.60

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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.