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Finding the Fourth Proportional to 171,275.52, 256,268.16 and 118,786.56

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Solution

The fourth proportional to 171,275.52, 256,268.16 and 118,786.56 is: 177,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,275.52 : 256,268.16 = 118,786.56 : x
  2. Step 2: Convert to fraction form
    171,275.52/256,268.16 = 118,786.56/x
  3. Step 3: Cross multiply
    171,275.52x = 256,268.16 × 118,786.56
  4. Step 4: Simplify right side
    171,275.52x = 30,441,213,163.93
  5. Step 5: Solve for x
    x = 30,441,213,163.93/171,275.52
  6. Step 6: Final answer
    x = 177,732.42

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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.