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Finding the Fourth Proportional to 308,805.05, 463,244.94 and 109,084.57

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Solution

The fourth proportional to 308,805.05, 463,244.94 and 109,084.57 is: 163,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,805.05 : 463,244.94 = 109,084.57 : x
  2. Step 2: Convert to fraction form
    308,805.05/463,244.94 = 109,084.57/x
  3. Step 3: Cross multiply
    308,805.05x = 463,244.94 × 109,084.57
  4. Step 4: Simplify right side
    308,805.05x = 50,532,873,926.46
  5. Step 5: Solve for x
    x = 50,532,873,926.46/308,805.05
  6. Step 6: Final answer
    x = 163,640.05

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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.