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Finding the Fourth Proportional to 308,040.20, 462,213.90 and 175,022.60

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Solution

The fourth proportional to 308,040.20, 462,213.90 and 175,022.60 is: 262,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,040.20 : 462,213.90 = 175,022.60 : x
  2. Step 2: Convert to fraction form
    308,040.20/462,213.90 = 175,022.60/x
  3. Step 3: Cross multiply
    308,040.20x = 462,213.90 × 175,022.60
  4. Step 4: Simplify right side
    308,040.20x = 80,897,878,534.14
  5. Step 5: Solve for x
    x = 80,897,878,534.14/308,040.20
  6. Step 6: Final answer
    x = 262,621.17

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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.