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Finding the Fourth Proportional to 179,858.40, 248,304 and 108,256

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Solution

The fourth proportional to 179,858.40, 248,304 and 108,256 is: 149,453.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,858.40 : 248,304 = 108,256 : x
  2. Step 2: Convert to fraction form
    179,858.40/248,304 = 108,256/x
  3. Step 3: Cross multiply
    179,858.40x = 248,304 × 108,256
  4. Step 4: Simplify right side
    179,858.40x = 26,880,397,824
  5. Step 5: Solve for x
    x = 26,880,397,824/179,858.40
  6. Step 6: Final answer
    x = 149,453.11

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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.