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Finding the Fourth Proportional to 299,601.12, 449,410.88 and 131,034.72

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Solution

The fourth proportional to 299,601.12, 449,410.88 and 131,034.72 is: 196,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,601.12 : 449,410.88 = 131,034.72 : x
  2. Step 2: Convert to fraction form
    299,601.12/449,410.88 = 131,034.72/x
  3. Step 3: Cross multiply
    299,601.12x = 449,410.88 × 131,034.72
  4. Step 4: Simplify right side
    299,601.12x = 58,888,428,825.75
  5. Step 5: Solve for x
    x = 58,888,428,825.75/299,601.12
  6. Step 6: Final answer
    x = 196,556.10

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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.