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Finding the Fourth Proportional to 322,485.87, 483,939.48 and 122,808.18

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Solution

The fourth proportional to 322,485.87, 483,939.48 and 122,808.18 is: 184,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,485.87 : 483,939.48 = 122,808.18 : x
  2. Step 2: Convert to fraction form
    322,485.87/483,939.48 = 122,808.18/x
  3. Step 3: Cross multiply
    322,485.87x = 483,939.48 × 122,808.18
  4. Step 4: Simplify right side
    322,485.87x = 59,431,726,768.95
  5. Step 5: Solve for x
    x = 59,431,726,768.95/322,485.87
  6. Step 6: Final answer
    x = 184,292.50

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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.