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Finding the Fourth Proportional to 255,513.88, 352,231.08 and 163,623.44

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Solution

The fourth proportional to 255,513.88, 352,231.08 and 163,623.44 is: 225,558.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,513.88 : 352,231.08 = 163,623.44 : x
  2. Step 2: Convert to fraction form
    255,513.88/352,231.08 = 163,623.44/x
  3. Step 3: Cross multiply
    255,513.88x = 352,231.08 × 163,623.44
  4. Step 4: Simplify right side
    255,513.88x = 57,633,260,984.52
  5. Step 5: Solve for x
    x = 57,633,260,984.52/255,513.88
  6. Step 6: Final answer
    x = 225,558.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.