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Finding the Fourth Proportional to 200,190.96, 300,198.96 and 59,916.78

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Solution

The fourth proportional to 200,190.96, 300,198.96 and 59,916.78 is: 89,848.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,190.96 : 300,198.96 = 59,916.78 : x
  2. Step 2: Convert to fraction form
    200,190.96/300,198.96 = 59,916.78/x
  3. Step 3: Cross multiply
    200,190.96x = 300,198.96 × 59,916.78
  4. Step 4: Simplify right side
    200,190.96x = 17,986,955,042.55
  5. Step 5: Solve for x
    x = 17,986,955,042.55/200,190.96
  6. Step 6: Final answer
    x = 89,848.99

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1.5x scale

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.