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Finding the Fourth Proportional to 69,029.80, 103,544.70 and 44,146.60

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Solution

The fourth proportional to 69,029.80, 103,544.70 and 44,146.60 is: 66,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,029.80 : 103,544.70 = 44,146.60 : x
  2. Step 2: Convert to fraction form
    69,029.80/103,544.70 = 44,146.60/x
  3. Step 3: Cross multiply
    69,029.80x = 103,544.70 × 44,146.60
  4. Step 4: Simplify right side
    69,029.80x = 4,571,146,453.02
  5. Step 5: Solve for x
    x = 4,571,146,453.02/69,029.80
  6. Step 6: Final answer
    x = 66,219.90

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1.5x scale

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.