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Finding the Fourth Proportional to 336,592.80, 504,993.96 and 99,936.72

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Solution

The fourth proportional to 336,592.80, 504,993.96 and 99,936.72 is: 149,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,592.80 : 504,993.96 = 99,936.72 : x
  2. Step 2: Convert to fraction form
    336,592.80/504,993.96 = 99,936.72/x
  3. Step 3: Cross multiply
    336,592.80x = 504,993.96 × 99,936.72
  4. Step 4: Simplify right side
    336,592.80x = 50,467,439,982.21
  5. Step 5: Solve for x
    x = 50,467,439,982.21/336,592.80
  6. Step 6: Final answer
    x = 149,936.18

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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.