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Finding the Fourth Proportional to 248,889.10, 373,301.87 and 80,391.92

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Solution

The fourth proportional to 248,889.10, 373,301.87 and 80,391.92 is: 120,577.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,889.10 : 373,301.87 = 80,391.92 : x
  2. Step 2: Convert to fraction form
    248,889.10/373,301.87 = 80,391.92/x
  3. Step 3: Cross multiply
    248,889.10x = 373,301.87 × 80,391.92
  4. Step 4: Simplify right side
    248,889.10x = 30,010,451,800.42
  5. Step 5: Solve for x
    x = 30,010,451,800.42/248,889.10
  6. Step 6: Final answer
    x = 120,577.61

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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.