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Finding the Fourth Proportional to 45,367.70, 68,057.01 and 19,069.02

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Solution

The fourth proportional to 45,367.70, 68,057.01 and 19,069.02 is: 28,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,367.70 : 68,057.01 = 19,069.02 : x
  2. Step 2: Convert to fraction form
    45,367.70/68,057.01 = 19,069.02/x
  3. Step 3: Cross multiply
    45,367.70x = 68,057.01 × 19,069.02
  4. Step 4: Simplify right side
    45,367.70x = 1,297,780,484.83
  5. Step 5: Solve for x
    x = 1,297,780,484.83/45,367.70
  6. Step 6: Final answer
    x = 28,605.83

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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.