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Finding the Fourth Proportional to 547,951,052.78, 821,839,086.18 and 159,683,063

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Solution

The fourth proportional to 547,951,052.78, 821,839,086.18 and 159,683,063 is: 239,499,097.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,951,052.78 : 821,839,086.18 = 159,683,063 : x
  2. Step 2: Convert to fraction form
    547,951,052.78/821,839,086.18 = 159,683,063/x
  3. Step 3: Cross multiply
    547,951,052.78x = 821,839,086.18 × 159,683,063
  4. Step 4: Simplify right side
    547,951,052.78x = 131,233,782,574,343,360
  5. Step 5: Solve for x
    x = 131,233,782,574,343,360/547,951,052.78
  6. Step 6: Final answer
    x = 239,499,097.43

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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.