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Finding the Fourth Proportional to 104,511.40, 156,651.90 and 57,797.80

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Solution

The fourth proportional to 104,511.40, 156,651.90 and 57,797.80 is: 86,632.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,511.40 : 156,651.90 = 57,797.80 : x
  2. Step 2: Convert to fraction form
    104,511.40/156,651.90 = 57,797.80/x
  3. Step 3: Cross multiply
    104,511.40x = 156,651.90 × 57,797.80
  4. Step 4: Simplify right side
    104,511.40x = 9,054,135,185.82
  5. Step 5: Solve for x
    x = 9,054,135,185.82/104,511.40
  6. Step 6: Final answer
    x = 86,632.99

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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.