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Finding the Fourth Proportional to 199,481.91, 275,247.37 and 118,916.93

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Solution

The fourth proportional to 199,481.91, 275,247.37 and 118,916.93 is: 164,082.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,481.91 : 275,247.37 = 118,916.93 : x
  2. Step 2: Convert to fraction form
    199,481.91/275,247.37 = 118,916.93/x
  3. Step 3: Cross multiply
    199,481.91x = 275,247.37 × 118,916.93
  4. Step 4: Simplify right side
    199,481.91x = 32,731,570,850.56
  5. Step 5: Solve for x
    x = 32,731,570,850.56/199,481.91
  6. Step 6: Final answer
    x = 164,082.91

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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.