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Finding the Fourth Proportional to 271,813.40, 407,574.30 and 113,863.40

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Solution

The fourth proportional to 271,813.40, 407,574.30 and 113,863.40 is: 170,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,813.40 : 407,574.30 = 113,863.40 : x
  2. Step 2: Convert to fraction form
    271,813.40/407,574.30 = 113,863.40/x
  3. Step 3: Cross multiply
    271,813.40x = 407,574.30 × 113,863.40
  4. Step 4: Simplify right side
    271,813.40x = 46,407,795,550.62
  5. Step 5: Solve for x
    x = 46,407,795,550.62/271,813.40
  6. Step 6: Final answer
    x = 170,734.02

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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.