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Finding the Fourth Proportional to 79,761.64, 110,076.39 and 43,951.65

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Solution

The fourth proportional to 79,761.64, 110,076.39 and 43,951.65 is: 60,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,761.64 : 110,076.39 = 43,951.65 : x
  2. Step 2: Convert to fraction form
    79,761.64/110,076.39 = 43,951.65/x
  3. Step 3: Cross multiply
    79,761.64x = 110,076.39 × 43,951.65
  4. Step 4: Simplify right side
    79,761.64x = 4,838,038,416.16
  5. Step 5: Solve for x
    x = 4,838,038,416.16/79,761.64
  6. Step 6: Final answer
    x = 60,656.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.