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Finding the Fourth Proportional to 200,021.10, 300,074.85 and 59,793.90

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Solution

The fourth proportional to 200,021.10, 300,074.85 and 59,793.90 is: 89,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,021.10 : 300,074.85 = 59,793.90 : x
  2. Step 2: Convert to fraction form
    200,021.10/300,074.85 = 59,793.90/x
  3. Step 3: Cross multiply
    200,021.10x = 300,074.85 × 59,793.90
  4. Step 4: Simplify right side
    200,021.10x = 17,942,645,573.42
  5. Step 5: Solve for x
    x = 17,942,645,573.42/200,021.10
  6. Step 6: Final answer
    x = 89,703.76

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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.