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Finding the Fourth Proportional to 129,106.71, 193,659.91 and 44,866.88

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Solution

The fourth proportional to 129,106.71, 193,659.91 and 44,866.88 is: 67,300.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,106.71 : 193,659.91 = 44,866.88 : x
  2. Step 2: Convert to fraction form
    129,106.71/193,659.91 = 44,866.88/x
  3. Step 3: Cross multiply
    129,106.71x = 193,659.91 × 44,866.88
  4. Step 4: Simplify right side
    129,106.71x = 8,688,915,942.78
  5. Step 5: Solve for x
    x = 8,688,915,942.78/129,106.71
  6. Step 6: Final answer
    x = 67,300.27

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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.