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Finding the Fourth Proportional to 248,427.44, 372,647.28 and 90,655.88

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Solution

The fourth proportional to 248,427.44, 372,647.28 and 90,655.88 is: 135,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,427.44 : 372,647.28 = 90,655.88 : x
  2. Step 2: Convert to fraction form
    248,427.44/372,647.28 = 90,655.88/x
  3. Step 3: Cross multiply
    248,427.44x = 372,647.28 × 90,655.88
  4. Step 4: Simplify right side
    248,427.44x = 33,782,667,098.01
  5. Step 5: Solve for x
    x = 33,782,667,098.01/248,427.44
  6. Step 6: Final answer
    x = 135,986.05

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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.