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Finding the Fourth Proportional to 324,181.72, 485,939.94 and 124,448.32

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Solution

The fourth proportional to 324,181.72, 485,939.94 and 124,448.32 is: 186,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,181.72 : 485,939.94 = 124,448.32 : x
  2. Step 2: Convert to fraction form
    324,181.72/485,939.94 = 124,448.32/x
  3. Step 3: Cross multiply
    324,181.72x = 485,939.94 × 124,448.32
  4. Step 4: Simplify right side
    324,181.72x = 60,474,409,153.90
  5. Step 5: Solve for x
    x = 60,474,409,153.90/324,181.72
  6. Step 6: Final answer
    x = 186,544.78

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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.