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Finding the Fourth Proportional to 308,299.79, 462,169.42 and 118,639.22

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Solution

The fourth proportional to 308,299.79, 462,169.42 and 118,639.22 is: 177,850.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,299.79 : 462,169.42 = 118,639.22 : x
  2. Step 2: Convert to fraction form
    308,299.79/462,169.42 = 118,639.22/x
  3. Step 3: Cross multiply
    308,299.79x = 462,169.42 × 118,639.22
  4. Step 4: Simplify right side
    308,299.79x = 54,831,416,889.21
  5. Step 5: Solve for x
    x = 54,831,416,889.21/308,299.79
  6. Step 6: Final answer
    x = 177,850.97

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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.