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Finding the Fourth Proportional to 135,745.44, 203,570.88 and 55,760.64

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Solution

The fourth proportional to 135,745.44, 203,570.88 and 55,760.64 is: 83,621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,745.44 : 203,570.88 = 55,760.64 : x
  2. Step 2: Convert to fraction form
    135,745.44/203,570.88 = 55,760.64/x
  3. Step 3: Cross multiply
    135,745.44x = 203,570.88 × 55,760.64
  4. Step 4: Simplify right side
    135,745.44x = 11,351,242,554.16
  5. Step 5: Solve for x
    x = 11,351,242,554.16/135,745.44
  6. Step 6: Final answer
    x = 83,621.54

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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.