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Finding the Fourth Proportional to 308,033.38, 462,049.75 and 115,943.68

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Solution

The fourth proportional to 308,033.38, 462,049.75 and 115,943.68 is: 173,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,033.38 : 462,049.75 = 115,943.68 : x
  2. Step 2: Convert to fraction form
    308,033.38/462,049.75 = 115,943.68/x
  3. Step 3: Cross multiply
    308,033.38x = 462,049.75 × 115,943.68
  4. Step 4: Simplify right side
    308,033.38x = 53,571,748,358.08
  5. Step 5: Solve for x
    x = 53,571,748,358.08/308,033.38
  6. Step 6: Final answer
    x = 173,915.40

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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.