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Finding the Fourth Proportional to 103,309.70, 154,959.08 and 33,183.54

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Solution

The fourth proportional to 103,309.70, 154,959.08 and 33,183.54 is: 49,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,309.70 : 154,959.08 = 33,183.54 : x
  2. Step 2: Convert to fraction form
    103,309.70/154,959.08 = 33,183.54/x
  3. Step 3: Cross multiply
    103,309.70x = 154,959.08 × 33,183.54
  4. Step 4: Simplify right side
    103,309.70x = 5,142,090,663.63
  5. Step 5: Solve for x
    x = 5,142,090,663.63/103,309.70
  6. Step 6: Final answer
    x = 49,773.55

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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.