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Finding the Fourth Proportional to 119,956.92, 179,706.42 and 67,206.84

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Solution

The fourth proportional to 119,956.92, 179,706.42 and 67,206.84 is: 100,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,956.92 : 179,706.42 = 67,206.84 : x
  2. Step 2: Convert to fraction form
    119,956.92/179,706.42 = 67,206.84/x
  3. Step 3: Cross multiply
    119,956.92x = 179,706.42 × 67,206.84
  4. Step 4: Simplify right side
    119,956.92x = 12,077,500,615.91
  5. Step 5: Solve for x
    x = 12,077,500,615.91/119,956.92
  6. Step 6: Final answer
    x = 100,681.98

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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.