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Finding the Fourth Proportional to 365,661.14, 504,409.28 and 212,682.11

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Solution

The fourth proportional to 365,661.14, 504,409.28 and 212,682.11 is: 293,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,661.14 : 504,409.28 = 212,682.11 : x
  2. Step 2: Convert to fraction form
    365,661.14/504,409.28 = 212,682.11/x
  3. Step 3: Cross multiply
    365,661.14x = 504,409.28 × 212,682.11
  4. Step 4: Simplify right side
    365,661.14x = 107,278,826,388.52
  5. Step 5: Solve for x
    x = 107,278,826,388.52/365,661.14
  6. Step 6: Final answer
    x = 293,383.18

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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.