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Finding the Fourth Proportional to 271,072.80, 373,859.52 and 190,766.40

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Solution

The fourth proportional to 271,072.80, 373,859.52 and 190,766.40 is: 263,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,072.80 : 373,859.52 = 190,766.40 : x
  2. Step 2: Convert to fraction form
    271,072.80/373,859.52 = 190,766.40/x
  3. Step 3: Cross multiply
    271,072.80x = 373,859.52 × 190,766.40
  4. Step 4: Simplify right side
    271,072.80x = 71,319,834,736.13
  5. Step 5: Solve for x
    x = 71,319,834,736.13/271,072.80
  6. Step 6: Final answer
    x = 263,102.14

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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.