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Finding the Fourth Proportional to 322,486.87, 483,940.98 and 122,809.18

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Solution

The fourth proportional to 322,486.87, 483,940.98 and 122,809.18 is: 184,294.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,486.87 : 483,940.98 = 122,809.18 : x
  2. Step 2: Convert to fraction form
    322,486.87/483,940.98 = 122,809.18/x
  3. Step 3: Cross multiply
    322,486.87x = 483,940.98 × 122,809.18
  4. Step 4: Simplify right side
    322,486.87x = 59,432,394,922.20
  5. Step 5: Solve for x
    x = 59,432,394,922.20/322,486.87
  6. Step 6: Final answer
    x = 184,294.00

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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.