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Finding the Fourth Proportional to 171,087.26, 256,632.95 and 103,634.03

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Solution

The fourth proportional to 171,087.26, 256,632.95 and 103,634.03 is: 155,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,087.26 : 256,632.95 = 103,634.03 : x
  2. Step 2: Convert to fraction form
    171,087.26/256,632.95 = 103,634.03/x
  3. Step 3: Cross multiply
    171,087.26x = 256,632.95 × 103,634.03
  4. Step 4: Simplify right side
    171,087.26x = 26,595,907,011.28
  5. Step 5: Solve for x
    x = 26,595,907,011.28/171,087.26
  6. Step 6: Final answer
    x = 155,452.29

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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.