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Finding the Fourth Proportional to 73,399.40, 110,012.70 and 54,909.80

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Solution

The fourth proportional to 73,399.40, 110,012.70 and 54,909.80 is: 82,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,399.40 : 110,012.70 = 54,909.80 : x
  2. Step 2: Convert to fraction form
    73,399.40/110,012.70 = 54,909.80/x
  3. Step 3: Cross multiply
    73,399.40x = 110,012.70 × 54,909.80
  4. Step 4: Simplify right side
    73,399.40x = 6,040,775,354.46
  5. Step 5: Solve for x
    x = 6,040,775,354.46/73,399.40
  6. Step 6: Final answer
    x = 82,300.06

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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.