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Finding the Fourth Proportional to 179,321.78, 247,464.11 and 98,749.06

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Solution

The fourth proportional to 179,321.78, 247,464.11 and 98,749.06 is: 136,273.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,321.78 : 247,464.11 = 98,749.06 : x
  2. Step 2: Convert to fraction form
    179,321.78/247,464.11 = 98,749.06/x
  3. Step 3: Cross multiply
    179,321.78x = 247,464.11 × 98,749.06
  4. Step 4: Simplify right side
    179,321.78x = 24,436,847,874.45
  5. Step 5: Solve for x
    x = 24,436,847,874.45/179,321.78
  6. Step 6: Final answer
    x = 136,273.73

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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.