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Finding the Fourth Proportional to 251,685.82, 377,528.64 and 91,773.82

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Solution

The fourth proportional to 251,685.82, 377,528.64 and 91,773.82 is: 137,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,685.82 : 377,528.64 = 91,773.82 : x
  2. Step 2: Convert to fraction form
    251,685.82/377,528.64 = 91,773.82/x
  3. Step 3: Cross multiply
    251,685.82x = 377,528.64 × 91,773.82
  4. Step 4: Simplify right side
    251,685.82x = 34,647,245,452.20
  5. Step 5: Solve for x
    x = 34,647,245,452.20/251,685.82
  6. Step 6: Final answer
    x = 137,660.70

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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.