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Finding the Fourth Proportional to 71,329.70, 106,954.05 and 26,957.90

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Solution

The fourth proportional to 71,329.70, 106,954.05 and 26,957.90 is: 40,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,329.70 : 106,954.05 = 26,957.90 : x
  2. Step 2: Convert to fraction form
    71,329.70/106,954.05 = 26,957.90/x
  3. Step 3: Cross multiply
    71,329.70x = 106,954.05 × 26,957.90
  4. Step 4: Simplify right side
    71,329.70x = 2,883,256,584.50
  5. Step 5: Solve for x
    x = 2,883,256,584.50/71,329.70
  6. Step 6: Final answer
    x = 40,421.54

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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.