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Finding the Fourth Proportional to 79,076.38, 118,614.78 and 29,134.84

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Solution

The fourth proportional to 79,076.38, 118,614.78 and 29,134.84 is: 43,702.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,076.38 : 118,614.78 = 29,134.84 : x
  2. Step 2: Convert to fraction form
    79,076.38/118,614.78 = 29,134.84/x
  3. Step 3: Cross multiply
    79,076.38x = 118,614.78 × 29,134.84
  4. Step 4: Simplify right side
    79,076.38x = 3,455,822,636.94
  5. Step 5: Solve for x
    x = 3,455,822,636.94/79,076.38
  6. Step 6: Final answer
    x = 43,702.34

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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.