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Finding the Fourth Proportional to 299,716.70, 449,747.85 and 112,862.30

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Solution

The fourth proportional to 299,716.70, 449,747.85 and 112,862.30 is: 169,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,716.70 : 449,747.85 = 112,862.30 : x
  2. Step 2: Convert to fraction form
    299,716.70/449,747.85 = 112,862.30/x
  3. Step 3: Cross multiply
    299,716.70x = 449,747.85 × 112,862.30
  4. Step 4: Simplify right side
    299,716.70x = 50,759,576,771.06
  5. Step 5: Solve for x
    x = 50,759,576,771.06/299,716.70
  6. Step 6: Final answer
    x = 169,358.52

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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.