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Finding the Fourth Proportional to 552,659,287.20, 828,988,930.80 and 169,657,072.80

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Solution

The fourth proportional to 552,659,287.20, 828,988,930.80 and 169,657,072.80 is: 254,485,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,659,287.20 : 828,988,930.80 = 169,657,072.80 : x
  2. Step 2: Convert to fraction form
    552,659,287.20/828,988,930.80 = 169,657,072.80/x
  3. Step 3: Cross multiply
    552,659,287.20x = 828,988,930.80 × 169,657,072.80
  4. Step 4: Simplify right side
    552,659,287.20x = 140,643,835,383,129,760
  5. Step 5: Solve for x
    x = 140,643,835,383,129,760/552,659,287.20
  6. Step 6: Final answer
    x = 254,485,609.20

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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.