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Finding the Fourth Proportional to 73,576.80, 110,288.40 and 40,245.60

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Solution

The fourth proportional to 73,576.80, 110,288.40 and 40,245.60 is: 60,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,576.80 : 110,288.40 = 40,245.60 : x
  2. Step 2: Convert to fraction form
    73,576.80/110,288.40 = 40,245.60/x
  3. Step 3: Cross multiply
    73,576.80x = 110,288.40 × 40,245.60
  4. Step 4: Simplify right side
    73,576.80x = 4,438,622,831.04
  5. Step 5: Solve for x
    x = 4,438,622,831.04/73,576.80
  6. Step 6: Final answer
    x = 60,326.39

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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.