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Finding the Fourth Proportional to 203,496.59, 280,843.05 and 118,611.83

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Solution

The fourth proportional to 203,496.59, 280,843.05 and 118,611.83 is: 163,694.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,496.59 : 280,843.05 = 118,611.83 : x
  2. Step 2: Convert to fraction form
    203,496.59/280,843.05 = 118,611.83/x
  3. Step 3: Cross multiply
    203,496.59x = 280,843.05 × 118,611.83
  4. Step 4: Simplify right side
    203,496.59x = 33,311,306,699.07
  5. Step 5: Solve for x
    x = 33,311,306,699.07/203,496.59
  6. Step 6: Final answer
    x = 163,694.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.