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Finding the Fourth Proportional to 274,493,179.63, 411,753,011.73 and 90,256,576.87

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Solution

The fourth proportional to 274,493,179.63, 411,753,011.73 and 90,256,576.87 is: 135,389,219.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,493,179.63 : 411,753,011.73 = 90,256,576.87 : x
  2. Step 2: Convert to fraction form
    274,493,179.63/411,753,011.73 = 90,256,576.87/x
  3. Step 3: Cross multiply
    274,493,179.63x = 411,753,011.73 × 90,256,576.87
  4. Step 4: Simplify right side
    274,493,179.63x = 37,163,417,354,662,760
  5. Step 5: Solve for x
    x = 37,163,417,354,662,760/274,493,179.63
  6. Step 6: Final answer
    x = 135,389,219.52

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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.