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Finding the Fourth Proportional to 274,493,176.63, 411,753,007.23 and 90,256,573.87

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Solution

The fourth proportional to 274,493,176.63, 411,753,007.23 and 90,256,573.87 is: 135,389,215.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,493,176.63 : 411,753,007.23 = 90,256,573.87 : x
  2. Step 2: Convert to fraction form
    274,493,176.63/411,753,007.23 = 90,256,573.87/x
  3. Step 3: Cross multiply
    274,493,176.63x = 411,753,007.23 × 90,256,573.87
  4. Step 4: Simplify right side
    274,493,176.63x = 37,163,415,713,249,144
  5. Step 5: Solve for x
    x = 37,163,415,713,249,144/274,493,176.63
  6. Step 6: Final answer
    x = 135,389,215.02

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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.