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Finding the Fourth Proportional to 199,886.30, 299,986.79 and 93,215.37

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Solution

The fourth proportional to 199,886.30, 299,986.79 and 93,215.37 is: 139,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,886.30 : 299,986.79 = 93,215.37 : x
  2. Step 2: Convert to fraction form
    199,886.30/299,986.79 = 93,215.37/x
  3. Step 3: Cross multiply
    199,886.30x = 299,986.79 × 93,215.37
  4. Step 4: Simplify right side
    199,886.30x = 27,963,379,624.96
  5. Step 5: Solve for x
    x = 27,963,379,624.96/199,886.30
  6. Step 6: Final answer
    x = 139,896.43

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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.