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Finding the Fourth Proportional to 271,975.58, 407,709.72 and 91,935.73

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Solution

The fourth proportional to 271,975.58, 407,709.72 and 91,935.73 is: 137,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,975.58 : 407,709.72 = 91,935.73 : x
  2. Step 2: Convert to fraction form
    271,975.58/407,709.72 = 91,935.73/x
  3. Step 3: Cross multiply
    271,975.58x = 407,709.72 × 91,935.73
  4. Step 4: Simplify right side
    271,975.58x = 37,483,090,736.30
  5. Step 5: Solve for x
    x = 37,483,090,736.30/271,975.58
  6. Step 6: Final answer
    x = 137,817.85

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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.