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Finding the Fourth Proportional to 73,290.80, 109,944.96 and 25,896.08

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Solution

The fourth proportional to 73,290.80, 109,944.96 and 25,896.08 is: 38,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,290.80 : 109,944.96 = 25,896.08 : x
  2. Step 2: Convert to fraction form
    73,290.80/109,944.96 = 25,896.08/x
  3. Step 3: Cross multiply
    73,290.80x = 109,944.96 × 25,896.08
  4. Step 4: Simplify right side
    73,290.80x = 2,847,143,479.76
  5. Step 5: Solve for x
    x = 2,847,143,479.76/73,290.80
  6. Step 6: Final answer
    x = 38,847.22

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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.