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Finding the Fourth Proportional to 193,626.88, 290,388.48 and 53,393.20

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Solution

The fourth proportional to 193,626.88, 290,388.48 and 53,393.20 is: 80,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,626.88 : 290,388.48 = 53,393.20 : x
  2. Step 2: Convert to fraction form
    193,626.88/290,388.48 = 53,393.20/x
  3. Step 3: Cross multiply
    193,626.88x = 290,388.48 × 53,393.20
  4. Step 4: Simplify right side
    193,626.88x = 15,504,770,190.34
  5. Step 5: Solve for x
    x = 15,504,770,190.34/193,626.88
  6. Step 6: Final answer
    x = 80,075.50

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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.