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Finding the Fourth Proportional to 293.15, 404.55 and 160.37

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Solution

The fourth proportional to 293.15, 404.55 and 160.37 is: 221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.15 : 404.55 = 160.37 : x
  2. Step 2: Convert to fraction form
    293.15/404.55 = 160.37/x
  3. Step 3: Cross multiply
    293.15x = 404.55 × 160.37
  4. Step 4: Simplify right side
    293.15x = 64,875.66
  5. Step 5: Solve for x
    x = 64,875.66/293.15
  6. Step 6: Final answer
    x = 221.31

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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.