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Finding the Fourth Proportional to 388,512.44, 582,801.66 and 108,029.69

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Solution

The fourth proportional to 388,512.44, 582,801.66 and 108,029.69 is: 162,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,512.44 : 582,801.66 = 108,029.69 : x
  2. Step 2: Convert to fraction form
    388,512.44/582,801.66 = 108,029.69/x
  3. Step 3: Cross multiply
    388,512.44x = 582,801.66 × 108,029.69
  4. Step 4: Simplify right side
    388,512.44x = 62,959,882,661.29
  5. Step 5: Solve for x
    x = 62,959,882,661.29/388,512.44
  6. Step 6: Final answer
    x = 162,053.71

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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.