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Finding the Fourth Proportional to 184.08, 253.88 and 118.55

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Solution

The fourth proportional to 184.08, 253.88 and 118.55 is: 163.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.08 : 253.88 = 118.55 : x
  2. Step 2: Convert to fraction form
    184.08/253.88 = 118.55/x
  3. Step 3: Cross multiply
    184.08x = 253.88 × 118.55
  4. Step 4: Simplify right side
    184.08x = 30,097.47
  5. Step 5: Solve for x
    x = 30,097.47/184.08
  6. Step 6: Final answer
    x = 163.50

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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.