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Finding the Fourth Proportional to 54,714.70, 82,136.85 and 54,325.90

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Solution

The fourth proportional to 54,714.70, 82,136.85 and 54,325.90 is: 81,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,714.70 : 82,136.85 = 54,325.90 : x
  2. Step 2: Convert to fraction form
    54,714.70/82,136.85 = 54,325.90/x
  3. Step 3: Cross multiply
    54,714.70x = 82,136.85 × 54,325.90
  4. Step 4: Simplify right side
    54,714.70x = 4,462,158,299.42
  5. Step 5: Solve for x
    x = 4,462,158,299.42/54,714.70
  6. Step 6: Final answer
    x = 81,553.19

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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.