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Finding the Fourth Proportional to 184.09, 253.75 and 118.48

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Solution

The fourth proportional to 184.09, 253.75 and 118.48 is: 163.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.09 : 253.75 = 118.48 : x
  2. Step 2: Convert to fraction form
    184.09/253.75 = 118.48/x
  3. Step 3: Cross multiply
    184.09x = 253.75 × 118.48
  4. Step 4: Simplify right side
    184.09x = 30,064.30
  5. Step 5: Solve for x
    x = 30,064.30/184.09
  6. Step 6: Final answer
    x = 163.31

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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.