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Finding the Fourth Proportional to 1,166.96, 1,608.48 and 851.96

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Solution

The fourth proportional to 1,166.96, 1,608.48 and 851.96 is: 1,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.96 : 1,608.48 = 851.96 : x
  2. Step 2: Convert to fraction form
    1,166.96/1,608.48 = 851.96/x
  3. Step 3: Cross multiply
    1,166.96x = 1,608.48 × 851.96
  4. Step 4: Simplify right side
    1,166.96x = 1,370,364.64
  5. Step 5: Solve for x
    x = 1,370,364.64/1,166.96
  6. Step 6: Final answer
    x = 1,174.30

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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.