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Finding the Fourth Proportional to 271,611.20, 407,465.40 and 113,855.60

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Solution

The fourth proportional to 271,611.20, 407,465.40 and 113,855.60 is: 170,803.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,611.20 : 407,465.40 = 113,855.60 : x
  2. Step 2: Convert to fraction form
    271,611.20/407,465.40 = 113,855.60/x
  3. Step 3: Cross multiply
    271,611.20x = 407,465.40 × 113,855.60
  4. Step 4: Simplify right side
    271,611.20x = 46,392,217,596.24
  5. Step 5: Solve for x
    x = 46,392,217,596.24/271,611.20
  6. Step 6: Final answer
    x = 170,803.77

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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.