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Finding the Fourth Proportional to 170,864.94, 256,317.94 and 71,092.66

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Solution

The fourth proportional to 170,864.94, 256,317.94 and 71,092.66 is: 106,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,864.94 : 256,317.94 = 71,092.66 : x
  2. Step 2: Convert to fraction form
    170,864.94/256,317.94 = 71,092.66/x
  3. Step 3: Cross multiply
    170,864.94x = 256,317.94 × 71,092.66
  4. Step 4: Simplify right side
    170,864.94x = 18,222,324,160.32
  5. Step 5: Solve for x
    x = 18,222,324,160.32/170,864.94
  6. Step 6: Final answer
    x = 106,647.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.