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Finding the Fourth Proportional to 271,448.20, 407,220.90 and 113,692.60

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Solution

The fourth proportional to 271,448.20, 407,220.90 and 113,692.60 is: 170,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,448.20 : 407,220.90 = 113,692.60 : x
  2. Step 2: Convert to fraction form
    271,448.20/407,220.90 = 113,692.60/x
  3. Step 3: Cross multiply
    271,448.20x = 407,220.90 × 113,692.60
  4. Step 4: Simplify right side
    271,448.20x = 46,298,002,895.34
  5. Step 5: Solve for x
    x = 46,298,002,895.34/271,448.20
  6. Step 6: Final answer
    x = 170,559.26

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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.