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Finding the Fourth Proportional to 294.23, 405.95 and 176.18

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Solution

The fourth proportional to 294.23, 405.95 and 176.18 is: 243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.23 : 405.95 = 176.18 : x
  2. Step 2: Convert to fraction form
    294.23/405.95 = 176.18/x
  3. Step 3: Cross multiply
    294.23x = 405.95 × 176.18
  4. Step 4: Simplify right side
    294.23x = 71,517.36
  5. Step 5: Solve for x
    x = 71,517.36/294.23
  6. Step 6: Final answer
    x = 243.06

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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.