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Finding the Fourth Proportional to 72,099.88, 108,088.44 and 44,039.60

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Solution

The fourth proportional to 72,099.88, 108,088.44 and 44,039.60 is: 66,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,099.88 : 108,088.44 = 44,039.60 : x
  2. Step 2: Convert to fraction form
    72,099.88/108,088.44 = 44,039.60/x
  3. Step 3: Cross multiply
    72,099.88x = 108,088.44 × 44,039.60
  4. Step 4: Simplify right side
    72,099.88x = 4,760,171,662.22
  5. Step 5: Solve for x
    x = 4,760,171,662.22/72,099.88
  6. Step 6: Final answer
    x = 66,021.91

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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.