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Finding the Fourth Proportional to 73,661.40, 110,419.20 and 36,190.80

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Solution

The fourth proportional to 73,661.40, 110,419.20 and 36,190.80 is: 54,250.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,661.40 : 110,419.20 = 36,190.80 : x
  2. Step 2: Convert to fraction form
    73,661.40/110,419.20 = 36,190.80/x
  3. Step 3: Cross multiply
    73,661.40x = 110,419.20 × 36,190.80
  4. Step 4: Simplify right side
    73,661.40x = 3,996,159,183.36
  5. Step 5: Solve for x
    x = 3,996,159,183.36/73,661.40
  6. Step 6: Final answer
    x = 54,250.38

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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.