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Finding the Fourth Proportional to 79,143.96, 118,677.60 and 29,247.54

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Solution

The fourth proportional to 79,143.96, 118,677.60 and 29,247.54 is: 43,857.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,143.96 : 118,677.60 = 29,247.54 : x
  2. Step 2: Convert to fraction form
    79,143.96/118,677.60 = 29,247.54/x
  3. Step 3: Cross multiply
    79,143.96x = 118,677.60 × 29,247.54
  4. Step 4: Simplify right side
    79,143.96x = 3,471,027,853.10
  5. Step 5: Solve for x
    x = 3,471,027,853.10/79,143.96
  6. Step 6: Final answer
    x = 43,857.14

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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.