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Finding the Fourth Proportional to 194,450.80, 291,791.40 and 141,727.60

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Solution

The fourth proportional to 194,450.80, 291,791.40 and 141,727.60 is: 212,675.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,450.80 : 291,791.40 = 141,727.60 : x
  2. Step 2: Convert to fraction form
    194,450.80/291,791.40 = 141,727.60/x
  3. Step 3: Cross multiply
    194,450.80x = 291,791.40 × 141,727.60
  4. Step 4: Simplify right side
    194,450.80x = 41,354,894,822.64
  5. Step 5: Solve for x
    x = 41,354,894,822.64/194,450.80
  6. Step 6: Final answer
    x = 212,675.36

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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.