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Finding the Fourth Proportional to 225,958.84, 338,936.79 and 57,477.72

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Solution

The fourth proportional to 225,958.84, 338,936.79 and 57,477.72 is: 86,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,958.84 : 338,936.79 = 57,477.72 : x
  2. Step 2: Convert to fraction form
    225,958.84/338,936.79 = 57,477.72/x
  3. Step 3: Cross multiply
    225,958.84x = 338,936.79 × 57,477.72
  4. Step 4: Simplify right side
    225,958.84x = 19,481,313,913.32
  5. Step 5: Solve for x
    x = 19,481,313,913.32/225,958.84
  6. Step 6: Final answer
    x = 86,216.21

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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.