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Finding the Fourth Proportional to 274,493,175.63, 411,753,005.73 and 90,256,572.87

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Solution

The fourth proportional to 274,493,175.63, 411,753,005.73 and 90,256,572.87 is: 135,389,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,493,175.63 : 411,753,005.73 = 90,256,572.87 : x
  2. Step 2: Convert to fraction form
    274,493,175.63/411,753,005.73 = 90,256,572.87/x
  3. Step 3: Cross multiply
    274,493,175.63x = 411,753,005.73 × 90,256,572.87
  4. Step 4: Simplify right side
    274,493,175.63x = 37,163,415,163,601,224
  5. Step 5: Solve for x
    x = 37,163,415,163,601,224/274,493,175.63
  6. Step 6: Final answer
    x = 135,389,213.52

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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.