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Finding the Fourth Proportional to 69,761,536.68, 104,571,961.30 and 43,872,340.30

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Solution

The fourth proportional to 69,761,536.68, 104,571,961.30 and 43,872,340.30 is: 65,764,271.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,761,536.68 : 104,571,961.30 = 43,872,340.30 : x
  2. Step 2: Convert to fraction form
    69,761,536.68/104,571,961.30 = 43,872,340.30/x
  3. Step 3: Cross multiply
    69,761,536.68x = 104,571,961.30 × 43,872,340.30
  4. Step 4: Simplify right side
    69,761,536.68x = 4,587,816,671,469,171
  5. Step 5: Solve for x
    x = 4,587,816,671,469,171/69,761,536.68
  6. Step 6: Final answer
    x = 65,764,271.97

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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.