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Finding the Fourth Proportional to 122,611.74, 183,913.94 and 33,870.56

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Solution

The fourth proportional to 122,611.74, 183,913.94 and 33,870.56 is: 50,804.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,611.74 : 183,913.94 = 33,870.56 : x
  2. Step 2: Convert to fraction form
    122,611.74/183,913.94 = 33,870.56/x
  3. Step 3: Cross multiply
    122,611.74x = 183,913.94 × 33,870.56
  4. Step 4: Simplify right side
    122,611.74x = 6,229,268,139.61
  5. Step 5: Solve for x
    x = 6,229,268,139.61/122,611.74
  6. Step 6: Final answer
    x = 50,804.83

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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.