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Finding the Fourth Proportional to 68,303.90, 102,455.85 and 41,731.85

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Solution

The fourth proportional to 68,303.90, 102,455.85 and 41,731.85 is: 62,597.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,303.90 : 102,455.85 = 41,731.85 : x
  2. Step 2: Convert to fraction form
    68,303.90/102,455.85 = 41,731.85/x
  3. Step 3: Cross multiply
    68,303.90x = 102,455.85 × 41,731.85
  4. Step 4: Simplify right side
    68,303.90x = 4,275,672,163.82
  5. Step 5: Solve for x
    x = 4,275,672,163.82/68,303.90
  6. Step 6: Final answer
    x = 62,597.78

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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.