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Finding the Fourth Proportional to 99,606.80, 149,410.20 and 37,269.20

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Solution

The fourth proportional to 99,606.80, 149,410.20 and 37,269.20 is: 55,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,606.80 : 149,410.20 = 37,269.20 : x
  2. Step 2: Convert to fraction form
    99,606.80/149,410.20 = 37,269.20/x
  3. Step 3: Cross multiply
    99,606.80x = 149,410.20 × 37,269.20
  4. Step 4: Simplify right side
    99,606.80x = 5,568,398,625.84
  5. Step 5: Solve for x
    x = 5,568,398,625.84/99,606.80
  6. Step 6: Final answer
    x = 55,903.80

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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.