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Finding the Fourth Proportional to 292.24, 438.44 and 118.96

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Solution

The fourth proportional to 292.24, 438.44 and 118.96 is: 178.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.24 : 438.44 = 118.96 : x
  2. Step 2: Convert to fraction form
    292.24/438.44 = 118.96/x
  3. Step 3: Cross multiply
    292.24x = 438.44 × 118.96
  4. Step 4: Simplify right side
    292.24x = 52,156.82
  5. Step 5: Solve for x
    x = 52,156.82/292.24
  6. Step 6: Final answer
    x = 178.47

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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.