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Finding the Fourth Proportional to 250,850.78, 376,078.53 and 124,406.54

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Solution

The fourth proportional to 250,850.78, 376,078.53 and 124,406.54 is: 186,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,850.78 : 376,078.53 = 124,406.54 : x
  2. Step 2: Convert to fraction form
    250,850.78/376,078.53 = 124,406.54/x
  3. Step 3: Cross multiply
    250,850.78x = 376,078.53 × 124,406.54
  4. Step 4: Simplify right side
    250,850.78x = 46,786,628,063.55
  5. Step 5: Solve for x
    x = 46,786,628,063.55/250,850.78
  6. Step 6: Final answer
    x = 186,511.79

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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.