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Finding the Fourth Proportional to 308,744.62, 463,052.13 and 87,076.78

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Solution

The fourth proportional to 308,744.62, 463,052.13 and 87,076.78 is: 130,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,744.62 : 463,052.13 = 87,076.78 : x
  2. Step 2: Convert to fraction form
    308,744.62/463,052.13 = 87,076.78/x
  3. Step 3: Cross multiply
    308,744.62x = 463,052.13 × 87,076.78
  4. Step 4: Simplify right side
    308,744.62x = 40,321,089,194.63
  5. Step 5: Solve for x
    x = 40,321,089,194.63/308,744.62
  6. Step 6: Final answer
    x = 130,596.90

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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.