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Finding the Fourth Proportional to 121,968.56, 182,879.94 and 47,026.56

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Solution

The fourth proportional to 121,968.56, 182,879.94 and 47,026.56 is: 70,511.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,968.56 : 182,879.94 = 47,026.56 : x
  2. Step 2: Convert to fraction form
    121,968.56/182,879.94 = 47,026.56/x
  3. Step 3: Cross multiply
    121,968.56x = 182,879.94 × 47,026.56
  4. Step 4: Simplify right side
    121,968.56x = 8,600,214,471.21
  5. Step 5: Solve for x
    x = 8,600,214,471.21/121,968.56
  6. Step 6: Final answer
    x = 70,511.73

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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.