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Finding the Fourth Proportional to 111,911.30, 167,783.12 and 67,527.56

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Solution

The fourth proportional to 111,911.30, 167,783.12 and 67,527.56 is: 101,240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,911.30 : 167,783.12 = 67,527.56 : x
  2. Step 2: Convert to fraction form
    111,911.30/167,783.12 = 67,527.56/x
  3. Step 3: Cross multiply
    111,911.30x = 167,783.12 × 67,527.56
  4. Step 4: Simplify right side
    111,911.30x = 11,329,984,702.79
  5. Step 5: Solve for x
    x = 11,329,984,702.79/111,911.30
  6. Step 6: Final answer
    x = 101,240.76

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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.