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Finding the Fourth Proportional to 88,255.91, 121,793.90 and 47,969.67

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Solution

The fourth proportional to 88,255.91, 121,793.90 and 47,969.67 is: 66,198.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,255.91 : 121,793.90 = 47,969.67 : x
  2. Step 2: Convert to fraction form
    88,255.91/121,793.90 = 47,969.67/x
  3. Step 3: Cross multiply
    88,255.91x = 121,793.90 × 47,969.67
  4. Step 4: Simplify right side
    88,255.91x = 5,842,412,582.04
  5. Step 5: Solve for x
    x = 5,842,412,582.04/88,255.91
  6. Step 6: Final answer
    x = 66,198.54

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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.