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Finding the Fourth Proportional to 199,813.75, 299,525.81 and 79,834.93

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Solution

The fourth proportional to 199,813.75, 299,525.81 and 79,834.93 is: 119,674.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,813.75 : 299,525.81 = 79,834.93 : x
  2. Step 2: Convert to fraction form
    199,813.75/299,525.81 = 79,834.93/x
  3. Step 3: Cross multiply
    199,813.75x = 299,525.81 × 79,834.93
  4. Step 4: Simplify right side
    199,813.75x = 23,912,620,576.91
  5. Step 5: Solve for x
    x = 23,912,620,576.91/199,813.75
  6. Step 6: Final answer
    x = 119,674.55

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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.