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Finding the Fourth Proportional to 1,173.83, 1,616.09 and 1,026.54

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Solution

The fourth proportional to 1,173.83, 1,616.09 and 1,026.54 is: 1,413.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.83 : 1,616.09 = 1,026.54 : x
  2. Step 2: Convert to fraction form
    1,173.83/1,616.09 = 1,026.54/x
  3. Step 3: Cross multiply
    1,173.83x = 1,616.09 × 1,026.54
  4. Step 4: Simplify right side
    1,173.83x = 1,658,975.90
  5. Step 5: Solve for x
    x = 1,658,975.90/1,173.83
  6. Step 6: Final answer
    x = 1,413.31

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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.