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Finding the Fourth Proportional to 322,485.70, 483,738.70 and 82,601.10

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Solution

The fourth proportional to 322,485.70, 483,738.70 and 82,601.10 is: 123,904.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,485.70 : 483,738.70 = 82,601.10 : x
  2. Step 2: Convert to fraction form
    322,485.70/483,738.70 = 82,601.10/x
  3. Step 3: Cross multiply
    322,485.70x = 483,738.70 × 82,601.10
  4. Step 4: Simplify right side
    322,485.70x = 39,957,348,732.57
  5. Step 5: Solve for x
    x = 39,957,348,732.57/322,485.70
  6. Step 6: Final answer
    x = 123,904.25

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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.