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Finding the Fourth Proportional to 126,758.62, 174,929.25 and 73,034.56

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Solution

The fourth proportional to 126,758.62, 174,929.25 and 73,034.56 is: 100,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,758.62 : 174,929.25 = 73,034.56 : x
  2. Step 2: Convert to fraction form
    126,758.62/174,929.25 = 73,034.56/x
  3. Step 3: Cross multiply
    126,758.62x = 174,929.25 × 73,034.56
  4. Step 4: Simplify right side
    126,758.62x = 12,775,880,804.88
  5. Step 5: Solve for x
    x = 12,775,880,804.88/126,758.62
  6. Step 6: Final answer
    x = 100,789.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.