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Finding the Fourth Proportional to 433,245.80, 649,618.56 and 133,645.94

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Solution

The fourth proportional to 433,245.80, 649,618.56 and 133,645.94 is: 200,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,245.80 : 649,618.56 = 133,645.94 : x
  2. Step 2: Convert to fraction form
    433,245.80/649,618.56 = 133,645.94/x
  3. Step 3: Cross multiply
    433,245.80x = 649,618.56 × 133,645.94
  4. Step 4: Simplify right side
    433,245.80x = 86,818,879,844.55
  5. Step 5: Solve for x
    x = 86,818,879,844.55/433,245.80
  6. Step 6: Final answer
    x = 200,391.74

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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.