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Finding the Fourth Proportional to 103,179.22, 154,826.11 and 55,793.14

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Solution

The fourth proportional to 103,179.22, 154,826.11 and 55,793.14 is: 83,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,179.22 : 154,826.11 = 55,793.14 : x
  2. Step 2: Convert to fraction form
    103,179.22/154,826.11 = 55,793.14/x
  3. Step 3: Cross multiply
    103,179.22x = 154,826.11 × 55,793.14
  4. Step 4: Simplify right side
    103,179.22x = 8,638,234,830.89
  5. Step 5: Solve for x
    x = 8,638,234,830.89/103,179.22
  6. Step 6: Final answer
    x = 83,720.68

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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.