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Finding the Fourth Proportional to 248,132.54, 372,163.59 and 79,631.03

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Solution

The fourth proportional to 248,132.54, 372,163.59 and 79,631.03 is: 119,435.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,132.54 : 372,163.59 = 79,631.03 : x
  2. Step 2: Convert to fraction form
    248,132.54/372,163.59 = 79,631.03/x
  3. Step 3: Cross multiply
    248,132.54x = 372,163.59 × 79,631.03
  4. Step 4: Simplify right side
    248,132.54x = 29,635,769,268.87
  5. Step 5: Solve for x
    x = 29,635,769,268.87/248,132.54
  6. Step 6: Final answer
    x = 119,435.24

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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.