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Finding the Fourth Proportional to 308,170.12, 462,163.26 and 130,674.28

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Solution

The fourth proportional to 308,170.12, 462,163.26 and 130,674.28 is: 195,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,170.12 : 462,163.26 = 130,674.28 : x
  2. Step 2: Convert to fraction form
    308,170.12/462,163.26 = 130,674.28/x
  3. Step 3: Cross multiply
    308,170.12x = 462,163.26 × 130,674.28
  4. Step 4: Simplify right side
    308,170.12x = 60,392,851,242.95
  5. Step 5: Solve for x
    x = 60,392,851,242.95/308,170.12
  6. Step 6: Final answer
    x = 195,972.44

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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.