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Finding the Fourth Proportional to 155,846.94, 214,969.05 and 108,082.86

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Solution

The fourth proportional to 155,846.94, 214,969.05 and 108,082.86 is: 149,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,846.94 : 214,969.05 = 108,082.86 : x
  2. Step 2: Convert to fraction form
    155,846.94/214,969.05 = 108,082.86/x
  3. Step 3: Cross multiply
    155,846.94x = 214,969.05 × 108,082.86
  4. Step 4: Simplify right side
    155,846.94x = 23,234,469,735.48
  5. Step 5: Solve for x
    x = 23,234,469,735.48/155,846.94
  6. Step 6: Final answer
    x = 149,085.18

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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.