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Finding the Fourth Proportional to 274,493,187.64, 411,753,023.73 and 90,256,584.88

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Solution

The fourth proportional to 274,493,187.64, 411,753,023.73 and 90,256,584.88 is: 135,389,231.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,493,187.64 : 411,753,023.73 = 90,256,584.88 : x
  2. Step 2: Convert to fraction form
    274,493,187.64/411,753,023.73 = 90,256,584.88/x
  3. Step 3: Cross multiply
    274,493,187.64x = 411,753,023.73 × 90,256,584.88
  4. Step 4: Simplify right side
    274,493,187.64x = 37,163,421,735,883,400
  5. Step 5: Solve for x
    x = 37,163,421,735,883,400/274,493,187.64
  6. Step 6: Final answer
    x = 135,389,231.53

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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.