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Finding the Fourth Proportional to 179,846.64, 248,171.94 and 115,201.31

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Solution

The fourth proportional to 179,846.64, 248,171.94 and 115,201.31 is: 158,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,846.64 : 248,171.94 = 115,201.31 : x
  2. Step 2: Convert to fraction form
    179,846.64/248,171.94 = 115,201.31/x
  3. Step 3: Cross multiply
    179,846.64x = 248,171.94 × 115,201.31
  4. Step 4: Simplify right side
    179,846.64x = 28,589,731,352.38
  5. Step 5: Solve for x
    x = 28,589,731,352.38/179,846.64
  6. Step 6: Final answer
    x = 158,967.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.