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Finding the Fourth Proportional to 244,471,985.70, 366,707,978.55 and 80,735,013.60

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Solution

The fourth proportional to 244,471,985.70, 366,707,978.55 and 80,735,013.60 is: 121,102,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,471,985.70 : 366,707,978.55 = 80,735,013.60 : x
  2. Step 2: Convert to fraction form
    244,471,985.70/366,707,978.55 = 80,735,013.60/x
  3. Step 3: Cross multiply
    244,471,985.70x = 366,707,978.55 × 80,735,013.60
  4. Step 4: Simplify right side
    244,471,985.70x = 29,606,173,635,462,756
  5. Step 5: Solve for x
    x = 29,606,173,635,462,756/244,471,985.70
  6. Step 6: Final answer
    x = 121,102,520.40

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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.