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Finding the Fourth Proportional to 55,167.70, 82,773.15 and 20,110.90

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Solution

The fourth proportional to 55,167.70, 82,773.15 and 20,110.90 is: 30,174.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,167.70 : 82,773.15 = 20,110.90 : x
  2. Step 2: Convert to fraction form
    55,167.70/82,773.15 = 20,110.90/x
  3. Step 3: Cross multiply
    55,167.70x = 82,773.15 × 20,110.90
  4. Step 4: Simplify right side
    55,167.70x = 1,664,642,542.34
  5. Step 5: Solve for x
    x = 1,664,642,542.34/55,167.70
  6. Step 6: Final answer
    x = 30,174.22

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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.