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Finding the Fourth Proportional to 311,099.80, 466,649.70 and 248,891.80

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Solution

The fourth proportional to 311,099.80, 466,649.70 and 248,891.80 is: 373,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,099.80 : 466,649.70 = 248,891.80 : x
  2. Step 2: Convert to fraction form
    311,099.80/466,649.70 = 248,891.80/x
  3. Step 3: Cross multiply
    311,099.80x = 466,649.70 × 248,891.80
  4. Step 4: Simplify right side
    311,099.80x = 116,145,283,802.46
  5. Step 5: Solve for x
    x = 116,145,283,802.46/311,099.80
  6. Step 6: Final answer
    x = 373,337.70

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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.