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Finding the Fourth Proportional to 311,103.67, 466,752.40 and 111,425.80

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Solution

The fourth proportional to 311,103.67, 466,752.40 and 111,425.80 is: 167,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,103.67 : 466,752.40 = 111,425.80 : x
  2. Step 2: Convert to fraction form
    311,103.67/466,752.40 = 111,425.80/x
  3. Step 3: Cross multiply
    311,103.67x = 466,752.40 × 111,425.80
  4. Step 4: Simplify right side
    311,103.67x = 52,008,256,959.59
  5. Step 5: Solve for x
    x = 52,008,256,959.59/311,103.67
  6. Step 6: Final answer
    x = 167,173.39

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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.