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Finding the Fourth Proportional to 119,808.72, 179,713.35 and 67,222.31

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Solution

The fourth proportional to 119,808.72, 179,713.35 and 67,222.31 is: 100,833.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,808.72 : 179,713.35 = 67,222.31 : x
  2. Step 2: Convert to fraction form
    119,808.72/179,713.35 = 67,222.31/x
  3. Step 3: Cross multiply
    119,808.72x = 179,713.35 × 67,222.31
  4. Step 4: Simplify right side
    119,808.72x = 12,080,745,626.27
  5. Step 5: Solve for x
    x = 12,080,745,626.27/119,808.72
  6. Step 6: Final answer
    x = 100,833.61

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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.