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Finding the Fourth Proportional to 79,236.94, 118,849.40 and 29,293.68

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Solution

The fourth proportional to 79,236.94, 118,849.40 and 29,293.68 is: 43,938.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,236.94 : 118,849.40 = 29,293.68 : x
  2. Step 2: Convert to fraction form
    79,236.94/118,849.40 = 29,293.68/x
  3. Step 3: Cross multiply
    79,236.94x = 118,849.40 × 29,293.68
  4. Step 4: Simplify right side
    79,236.94x = 3,481,536,291.79
  5. Step 5: Solve for x
    x = 3,481,536,291.79/79,236.94
  6. Step 6: Final answer
    x = 43,938.30

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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.