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Finding the Fourth Proportional to 388,131.57, 582,197.49 and 174,650.13

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Solution

The fourth proportional to 388,131.57, 582,197.49 and 174,650.13 is: 261,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,131.57 : 582,197.49 = 174,650.13 : x
  2. Step 2: Convert to fraction form
    388,131.57/582,197.49 = 174,650.13/x
  3. Step 3: Cross multiply
    388,131.57x = 582,197.49 × 174,650.13
  4. Step 4: Simplify right side
    388,131.57x = 101,680,867,314.17
  5. Step 5: Solve for x
    x = 101,680,867,314.17/388,131.57
  6. Step 6: Final answer
    x = 261,975.26

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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.