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Finding the Fourth Proportional to 274,493,388.64, 411,753,325.44 and 90,256,786.08

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Solution

The fourth proportional to 274,493,388.64, 411,753,325.44 and 90,256,786.08 is: 135,389,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,493,388.64 : 411,753,325.44 = 90,256,786.08 : x
  2. Step 2: Convert to fraction form
    274,493,388.64/411,753,325.44 = 90,256,786.08/x
  3. Step 3: Cross multiply
    274,493,388.64x = 411,753,325.44 × 90,256,786.08
  4. Step 4: Simplify right side
    274,493,388.64x = 37,163,531,811,966,704
  5. Step 5: Solve for x
    x = 37,163,531,811,966,704/274,493,388.64
  6. Step 6: Final answer
    x = 135,389,533.41

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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.