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Finding the Fourth Proportional to 79,163.46, 109,246.50 and 43,354.98

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Solution

The fourth proportional to 79,163.46, 109,246.50 and 43,354.98 is: 59,830.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,163.46 : 109,246.50 = 43,354.98 : x
  2. Step 2: Convert to fraction form
    79,163.46/109,246.50 = 43,354.98/x
  3. Step 3: Cross multiply
    79,163.46x = 109,246.50 × 43,354.98
  4. Step 4: Simplify right side
    79,163.46x = 4,736,379,822.57
  5. Step 5: Solve for x
    x = 4,736,379,822.57/79,163.46
  6. Step 6: Final answer
    x = 59,830.38

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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.