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Finding the Fourth Proportional to 122,611.92, 183,920.16 and 33,867.78

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Solution

The fourth proportional to 122,611.92, 183,920.16 and 33,867.78 is: 50,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,611.92 : 183,920.16 = 33,867.78 : x
  2. Step 2: Convert to fraction form
    122,611.92/183,920.16 = 33,867.78/x
  3. Step 3: Cross multiply
    122,611.92x = 183,920.16 × 33,867.78
  4. Step 4: Simplify right side
    122,611.92x = 6,228,967,516.44
  5. Step 5: Solve for x
    x = 6,228,967,516.44/122,611.92
  6. Step 6: Final answer
    x = 50,802.30

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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.