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Finding the Fourth Proportional to 46,481.40, 69,722.10 and 43,273.80

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Solution

The fourth proportional to 46,481.40, 69,722.10 and 43,273.80 is: 64,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,481.40 : 69,722.10 = 43,273.80 : x
  2. Step 2: Convert to fraction form
    46,481.40/69,722.10 = 43,273.80/x
  3. Step 3: Cross multiply
    46,481.40x = 69,722.10 × 43,273.80
  4. Step 4: Simplify right side
    46,481.40x = 3,017,140,210.98
  5. Step 5: Solve for x
    x = 3,017,140,210.98/46,481.40
  6. Step 6: Final answer
    x = 64,910.70

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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.