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Finding the Fourth Proportional to 103,313.70, 154,955.84 and 33,183.90

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Solution

The fourth proportional to 103,313.70, 154,955.84 and 33,183.90 is: 49,771.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,313.70 : 154,955.84 = 33,183.90 : x
  2. Step 2: Convert to fraction form
    103,313.70/154,955.84 = 33,183.90/x
  3. Step 3: Cross multiply
    103,313.70x = 154,955.84 × 33,183.90
  4. Step 4: Simplify right side
    103,313.70x = 5,142,038,933.06
  5. Step 5: Solve for x
    x = 5,142,038,933.06/103,313.70
  6. Step 6: Final answer
    x = 49,771.12

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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.