Home / 73,539.20-109,477.18-73,101.80

Finding the Fourth Proportional to 73,539.20, 109,477.18 and 73,101.80

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Solution

The fourth proportional to 73,539.20, 109,477.18 and 73,101.80 is: 108,826.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,539.20 : 109,477.18 = 73,101.80 : x
  2. Step 2: Convert to fraction form
    73,539.20/109,477.18 = 73,101.80/x
  3. Step 3: Cross multiply
    73,539.20x = 109,477.18 × 73,101.80
  4. Step 4: Simplify right side
    73,539.20x = 8,002,978,916.92
  5. Step 5: Solve for x
    x = 8,002,978,916.92/73,539.20
  6. Step 6: Final answer
    x = 108,826.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.