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Finding the Fourth Proportional to 339,858.79, 468,952.61 and 196,632.16

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Solution

The fourth proportional to 339,858.79, 468,952.61 and 196,632.16 is: 271,321.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,858.79 : 468,952.61 = 196,632.16 : x
  2. Step 2: Convert to fraction form
    339,858.79/468,952.61 = 196,632.16/x
  3. Step 3: Cross multiply
    339,858.79x = 468,952.61 × 196,632.16
  4. Step 4: Simplify right side
    339,858.79x = 92,211,162,486.40
  5. Step 5: Solve for x
    x = 92,211,162,486.40/339,858.79
  6. Step 6: Final answer
    x = 271,321.99

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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.