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Finding the Fourth Proportional to 66,844.40, 100,288.20 and 44,682.80

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Solution

The fourth proportional to 66,844.40, 100,288.20 and 44,682.80 is: 67,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,844.40 : 100,288.20 = 44,682.80 : x
  2. Step 2: Convert to fraction form
    66,844.40/100,288.20 = 44,682.80/x
  3. Step 3: Cross multiply
    66,844.40x = 100,288.20 × 44,682.80
  4. Step 4: Simplify right side
    66,844.40x = 4,481,157,582.96
  5. Step 5: Solve for x
    x = 4,481,157,582.96/66,844.40
  6. Step 6: Final answer
    x = 67,038.64

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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.