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Finding the Fourth Proportional to 104,467.52, 144,163.68 and 56,722.70

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Solution

The fourth proportional to 104,467.52, 144,163.68 and 56,722.70 is: 78,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,467.52 : 144,163.68 = 56,722.70 : x
  2. Step 2: Convert to fraction form
    104,467.52/144,163.68 = 56,722.70/x
  3. Step 3: Cross multiply
    104,467.52x = 144,163.68 × 56,722.70
  4. Step 4: Simplify right side
    104,467.52x = 8,177,352,450.72
  5. Step 5: Solve for x
    x = 8,177,352,450.72/104,467.52
  6. Step 6: Final answer
    x = 78,276.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.