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Finding the Fourth Proportional to 73,040.88, 109,564.02 and 20,448.98

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Solution

The fourth proportional to 73,040.88, 109,564.02 and 20,448.98 is: 30,674.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,040.88 : 109,564.02 = 20,448.98 : x
  2. Step 2: Convert to fraction form
    73,040.88/109,564.02 = 20,448.98/x
  3. Step 3: Cross multiply
    73,040.88x = 109,564.02 × 20,448.98
  4. Step 4: Simplify right side
    73,040.88x = 2,240,472,453.70
  5. Step 5: Solve for x
    x = 2,240,472,453.70/73,040.88
  6. Step 6: Final answer
    x = 30,674.23

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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.