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Finding the Fourth Proportional to 200,830.37, 301,246.58 and 67,711.79

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Solution

The fourth proportional to 200,830.37, 301,246.58 and 67,711.79 is: 101,568.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,830.37 : 301,246.58 = 67,711.79 : x
  2. Step 2: Convert to fraction form
    200,830.37/301,246.58 = 67,711.79/x
  3. Step 3: Cross multiply
    200,830.37x = 301,246.58 × 67,711.79
  4. Step 4: Simplify right side
    200,830.37x = 20,397,943,826.22
  5. Step 5: Solve for x
    x = 20,397,943,826.22/200,830.37
  6. Step 6: Final answer
    x = 101,568.03

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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.