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Finding the Fourth Proportional to 271,890.80, 407,836.20 and 114,426.80

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Solution

The fourth proportional to 271,890.80, 407,836.20 and 114,426.80 is: 171,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,890.80 : 407,836.20 = 114,426.80 : x
  2. Step 2: Convert to fraction form
    271,890.80/407,836.20 = 114,426.80/x
  3. Step 3: Cross multiply
    271,890.80x = 407,836.20 × 114,426.80
  4. Step 4: Simplify right side
    271,890.80x = 46,667,391,290.16
  5. Step 5: Solve for x
    x = 46,667,391,290.16/271,890.80
  6. Step 6: Final answer
    x = 171,640.20

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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.