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Finding the Fourth Proportional to 73,751.36, 101,777.28 and 40,216.64

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Solution

The fourth proportional to 73,751.36, 101,777.28 and 40,216.64 is: 55,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,751.36 : 101,777.28 = 40,216.64 : x
  2. Step 2: Convert to fraction form
    73,751.36/101,777.28 = 40,216.64/x
  3. Step 3: Cross multiply
    73,751.36x = 101,777.28 × 40,216.64
  4. Step 4: Simplify right side
    73,751.36x = 4,093,140,229.94
  5. Step 5: Solve for x
    x = 4,093,140,229.94/73,751.36
  6. Step 6: Final answer
    x = 55,499.18

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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.