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Finding the Fourth Proportional to 293.72, 405.16 and 175.68

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Solution

The fourth proportional to 293.72, 405.16 and 175.68 is: 242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.72 : 405.16 = 175.68 : x
  2. Step 2: Convert to fraction form
    293.72/405.16 = 175.68/x
  3. Step 3: Cross multiply
    293.72x = 405.16 × 175.68
  4. Step 4: Simplify right side
    293.72x = 71,178.51
  5. Step 5: Solve for x
    x = 71,178.51/293.72
  6. Step 6: Final answer
    x = 242.33

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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.