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Finding the Fourth Proportional to 108,422.80, 162,550.83 and 55,070.94

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Solution

The fourth proportional to 108,422.80, 162,550.83 and 55,070.94 is: 82,564.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,422.80 : 162,550.83 = 55,070.94 : x
  2. Step 2: Convert to fraction form
    108,422.80/162,550.83 = 55,070.94/x
  3. Step 3: Cross multiply
    108,422.80x = 162,550.83 × 55,070.94
  4. Step 4: Simplify right side
    108,422.80x = 8,951,826,442.95
  5. Step 5: Solve for x
    x = 8,951,826,442.95/108,422.80
  6. Step 6: Final answer
    x = 82,564.06

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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.