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Finding the Fourth Proportional to 253,086.14, 379,552.53 and 133,078.46

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Solution

The fourth proportional to 253,086.14, 379,552.53 and 133,078.46 is: 199,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,086.14 : 379,552.53 = 133,078.46 : x
  2. Step 2: Convert to fraction form
    253,086.14/379,552.53 = 133,078.46/x
  3. Step 3: Cross multiply
    253,086.14x = 379,552.53 × 133,078.46
  4. Step 4: Simplify right side
    253,086.14x = 50,510,266,181.50
  5. Step 5: Solve for x
    x = 50,510,266,181.50/253,086.14
  6. Step 6: Final answer
    x = 199,577.37

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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.