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Finding the Fourth Proportional to 268,704.66, 402,974.34 and 88,757.76

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Solution

The fourth proportional to 268,704.66, 402,974.34 and 88,757.76 is: 133,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,704.66 : 402,974.34 = 88,757.76 : x
  2. Step 2: Convert to fraction form
    268,704.66/402,974.34 = 88,757.76/x
  3. Step 3: Cross multiply
    268,704.66x = 402,974.34 × 88,757.76
  4. Step 4: Simplify right side
    268,704.66x = 35,767,099,755.88
  5. Step 5: Solve for x
    x = 35,767,099,755.88/268,704.66
  6. Step 6: Final answer
    x = 133,109.34

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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.