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Finding the Fourth Proportional to 73,843.20, 110,764.80 and 47,577.60

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Solution

The fourth proportional to 73,843.20, 110,764.80 and 47,577.60 is: 71,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,843.20 : 110,764.80 = 47,577.60 : x
  2. Step 2: Convert to fraction form
    73,843.20/110,764.80 = 47,577.60/x
  3. Step 3: Cross multiply
    73,843.20x = 110,764.80 × 47,577.60
  4. Step 4: Simplify right side
    73,843.20x = 5,269,923,348.48
  5. Step 5: Solve for x
    x = 5,269,923,348.48/73,843.20
  6. Step 6: Final answer
    x = 71,366.40

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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.