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Finding the Fourth Proportional to 72,563.58, 100,158.60 and 43,883.28

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Solution

The fourth proportional to 72,563.58, 100,158.60 and 43,883.28 is: 60,571.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,563.58 : 100,158.60 = 43,883.28 : x
  2. Step 2: Convert to fraction form
    72,563.58/100,158.60 = 43,883.28/x
  3. Step 3: Cross multiply
    72,563.58x = 100,158.60 × 43,883.28
  4. Step 4: Simplify right side
    72,563.58x = 4,395,287,888.21
  5. Step 5: Solve for x
    x = 4,395,287,888.21/72,563.58
  6. Step 6: Final answer
    x = 60,571.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.