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Finding the Fourth Proportional to 279,176.62, 385,297.94 and 164,449.33

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Solution

The fourth proportional to 279,176.62, 385,297.94 and 164,449.33 is: 226,960.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,176.62 : 385,297.94 = 164,449.33 : x
  2. Step 2: Convert to fraction form
    279,176.62/385,297.94 = 164,449.33/x
  3. Step 3: Cross multiply
    279,176.62x = 385,297.94 × 164,449.33
  4. Step 4: Simplify right side
    279,176.62x = 63,361,986,297.89
  5. Step 5: Solve for x
    x = 63,361,986,297.89/279,176.62
  6. Step 6: Final answer
    x = 226,960.22

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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.