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Finding the Fourth Proportional to 343,892.75, 474,615.75 and 192,989.75

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Solution

The fourth proportional to 343,892.75, 474,615.75 and 192,989.75 is: 266,350.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,892.75 : 474,615.75 = 192,989.75 : x
  2. Step 2: Convert to fraction form
    343,892.75/474,615.75 = 192,989.75/x
  3. Step 3: Cross multiply
    343,892.75x = 474,615.75 × 192,989.75
  4. Step 4: Simplify right side
    343,892.75x = 91,595,974,938.56
  5. Step 5: Solve for x
    x = 91,595,974,938.56/343,892.75
  6. Step 6: Final answer
    x = 266,350.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.