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Finding the Fourth Proportional to 300,187.65, 414,262.22 and 164,218.68

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Solution

The fourth proportional to 300,187.65, 414,262.22 and 164,218.68 is: 226,623.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,187.65 : 414,262.22 = 164,218.68 : x
  2. Step 2: Convert to fraction form
    300,187.65/414,262.22 = 164,218.68/x
  3. Step 3: Cross multiply
    300,187.65x = 414,262.22 × 164,218.68
  4. Step 4: Simplify right side
    300,187.65x = 68,029,594,121.18
  5. Step 5: Solve for x
    x = 68,029,594,121.18/300,187.65
  6. Step 6: Final answer
    x = 226,623.56

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1.5x scale

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.