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Finding the Fourth Proportional to 155,267.80, 232,814.21 and 54,019.42

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Solution

The fourth proportional to 155,267.80, 232,814.21 and 54,019.42 is: 80,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,267.80 : 232,814.21 = 54,019.42 : x
  2. Step 2: Convert to fraction form
    155,267.80/232,814.21 = 54,019.42/x
  3. Step 3: Cross multiply
    155,267.80x = 232,814.21 × 54,019.42
  4. Step 4: Simplify right side
    155,267.80x = 12,576,488,591.96
  5. Step 5: Solve for x
    x = 12,576,488,591.96/155,267.80
  6. Step 6: Final answer
    x = 80,998.69

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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.