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Finding the Fourth Proportional to 111,435.99, 166,997.13 and 48,207.42

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Solution

The fourth proportional to 111,435.99, 166,997.13 and 48,207.42 is: 72,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,435.99 : 166,997.13 = 48,207.42 : x
  2. Step 2: Convert to fraction form
    111,435.99/166,997.13 = 48,207.42/x
  3. Step 3: Cross multiply
    111,435.99x = 166,997.13 × 48,207.42
  4. Step 4: Simplify right side
    111,435.99x = 8,050,500,784.70
  5. Step 5: Solve for x
    x = 8,050,500,784.70/111,435.99
  6. Step 6: Final answer
    x = 72,243.27

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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.