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Finding the Fourth Proportional to 358,474.80, 537,694.38 and 133,817.97

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Solution

The fourth proportional to 358,474.80, 537,694.38 and 133,817.97 is: 200,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,474.80 : 537,694.38 = 133,817.97 : x
  2. Step 2: Convert to fraction form
    358,474.80/537,694.38 = 133,817.97/x
  3. Step 3: Cross multiply
    358,474.80x = 537,694.38 × 133,817.97
  4. Step 4: Simplify right side
    358,474.80x = 71,953,170,412.01
  5. Step 5: Solve for x
    x = 71,953,170,412.01/358,474.80
  6. Step 6: Final answer
    x = 200,720.30

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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.