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Finding the Fourth Proportional to 308,040.10, 462,060.15 and 168,072.10

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Solution

The fourth proportional to 308,040.10, 462,060.15 and 168,072.10 is: 252,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,040.10 : 462,060.15 = 168,072.10 : x
  2. Step 2: Convert to fraction form
    308,040.10/462,060.15 = 168,072.10/x
  3. Step 3: Cross multiply
    308,040.10x = 462,060.15 × 168,072.10
  4. Step 4: Simplify right side
    308,040.10x = 77,659,419,736.82
  5. Step 5: Solve for x
    x = 77,659,419,736.82/308,040.10
  6. Step 6: Final answer
    x = 252,108.15

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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.