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Finding the Fourth Proportional to 103,903.97, 155,872.35 and 33,766.88

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Solution

The fourth proportional to 103,903.97, 155,872.35 and 33,766.88 is: 50,655.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,903.97 : 155,872.35 = 33,766.88 : x
  2. Step 2: Convert to fraction form
    103,903.97/155,872.35 = 33,766.88/x
  3. Step 3: Cross multiply
    103,903.97x = 155,872.35 × 33,766.88
  4. Step 4: Simplify right side
    103,903.97x = 5,263,322,158.41
  5. Step 5: Solve for x
    x = 5,263,322,158.41/103,903.97
  6. Step 6: Final answer
    x = 50,655.64

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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.