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Finding the Fourth Proportional to 103,185.54, 154,786.50 and 44,021.70

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Solution

The fourth proportional to 103,185.54, 154,786.50 and 44,021.70 is: 66,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,185.54 : 154,786.50 = 44,021.70 : x
  2. Step 2: Convert to fraction form
    103,185.54/154,786.50 = 44,021.70/x
  3. Step 3: Cross multiply
    103,185.54x = 154,786.50 × 44,021.70
  4. Step 4: Simplify right side
    103,185.54x = 6,813,964,867.05
  5. Step 5: Solve for x
    x = 6,813,964,867.05/103,185.54
  6. Step 6: Final answer
    x = 66,036.04

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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.