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Finding the Fourth Proportional to 103,993.59, 155,990.40 and 33,872.91

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Solution

The fourth proportional to 103,993.59, 155,990.40 and 33,872.91 is: 50,809.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,993.59 : 155,990.40 = 33,872.91 : x
  2. Step 2: Convert to fraction form
    103,993.59/155,990.40 = 33,872.91/x
  3. Step 3: Cross multiply
    103,993.59x = 155,990.40 × 33,872.91
  4. Step 4: Simplify right side
    103,993.59x = 5,283,848,780.06
  5. Step 5: Solve for x
    x = 5,283,848,780.06/103,993.59
  6. Step 6: Final answer
    x = 50,809.37

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1.5x scale

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.