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Finding the Fourth Proportional to 204,858.81, 307,288.35 and 64,628.37

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Solution

The fourth proportional to 204,858.81, 307,288.35 and 64,628.37 is: 96,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,858.81 : 307,288.35 = 64,628.37 : x
  2. Step 2: Convert to fraction form
    204,858.81/307,288.35 = 64,628.37/x
  3. Step 3: Cross multiply
    204,858.81x = 307,288.35 × 64,628.37
  4. Step 4: Simplify right side
    204,858.81x = 19,859,545,180.49
  5. Step 5: Solve for x
    x = 19,859,545,180.49/204,858.81
  6. Step 6: Final answer
    x = 96,942.60

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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.