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Finding the Fourth Proportional to 336,384.11, 504,490.20 and 99,671.43

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Solution

The fourth proportional to 336,384.11, 504,490.20 and 99,671.43 is: 149,481.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,384.11 : 504,490.20 = 99,671.43 : x
  2. Step 2: Convert to fraction form
    336,384.11/504,490.20 = 99,671.43/x
  3. Step 3: Cross multiply
    336,384.11x = 504,490.20 × 99,671.43
  4. Step 4: Simplify right side
    336,384.11x = 50,283,259,654.99
  5. Step 5: Solve for x
    x = 50,283,259,654.99/336,384.11
  6. Step 6: Final answer
    x = 149,481.68

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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.