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Finding the Fourth Proportional to 193,893.60, 290,149.20 and 134,450.40

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Solution

The fourth proportional to 193,893.60, 290,149.20 and 134,450.40 is: 201,196.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,893.60 : 290,149.20 = 134,450.40 : x
  2. Step 2: Convert to fraction form
    193,893.60/290,149.20 = 134,450.40/x
  3. Step 3: Cross multiply
    193,893.60x = 290,149.20 × 134,450.40
  4. Step 4: Simplify right side
    193,893.60x = 39,010,675,999.68
  5. Step 5: Solve for x
    x = 39,010,675,999.68/193,893.60
  6. Step 6: Final answer
    x = 201,196.31

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1.5x scale

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.