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Finding the Fourth Proportional to 247,893.81, 342,093.74 and 134,716.56

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Solution

The fourth proportional to 247,893.81, 342,093.74 and 134,716.56 is: 185,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,893.81 : 342,093.74 = 134,716.56 : x
  2. Step 2: Convert to fraction form
    247,893.81/342,093.74 = 134,716.56/x
  3. Step 3: Cross multiply
    247,893.81x = 342,093.74 × 134,716.56
  4. Step 4: Simplify right side
    247,893.81x = 46,085,691,850.33
  5. Step 5: Solve for x
    x = 46,085,691,850.33/247,893.81
  6. Step 6: Final answer
    x = 185,909.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.