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Finding the Fourth Proportional to 71,254.60, 106,766.70 and 44,912.20

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Solution

The fourth proportional to 71,254.60, 106,766.70 and 44,912.20 is: 67,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,254.60 : 106,766.70 = 44,912.20 : x
  2. Step 2: Convert to fraction form
    71,254.60/106,766.70 = 44,912.20/x
  3. Step 3: Cross multiply
    71,254.60x = 106,766.70 × 44,912.20
  4. Step 4: Simplify right side
    71,254.60x = 4,795,127,383.74
  5. Step 5: Solve for x
    x = 4,795,127,383.74/71,254.60
  6. Step 6: Final answer
    x = 67,295.69

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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.