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Finding the Fourth Proportional to 433,230.16, 649,907.50 and 133,736.38

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Solution

The fourth proportional to 433,230.16, 649,907.50 and 133,736.38 is: 200,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,230.16 : 649,907.50 = 133,736.38 : x
  2. Step 2: Convert to fraction form
    433,230.16/649,907.50 = 133,736.38/x
  3. Step 3: Cross multiply
    433,230.16x = 649,907.50 × 133,736.38
  4. Step 4: Simplify right side
    433,230.16x = 86,916,276,384.85
  5. Step 5: Solve for x
    x = 86,916,276,384.85/433,230.16
  6. Step 6: Final answer
    x = 200,623.79

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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.