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Finding the Fourth Proportional to 111,703.40, 167,563.20 and 67,234.40

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Solution

The fourth proportional to 111,703.40, 167,563.20 and 67,234.40 is: 100,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,703.40 : 167,563.20 = 67,234.40 : x
  2. Step 2: Convert to fraction form
    111,703.40/167,563.20 = 67,234.40/x
  3. Step 3: Cross multiply
    111,703.40x = 167,563.20 × 67,234.40
  4. Step 4: Simplify right side
    111,703.40x = 11,266,011,214.08
  5. Step 5: Solve for x
    x = 11,266,011,214.08/111,703.40
  6. Step 6: Final answer
    x = 100,856.48

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1.5x scale

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.