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Finding the Fourth Proportional to 79,747.84, 110,025.60 and 51,472.32

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Solution

The fourth proportional to 79,747.84, 110,025.60 and 51,472.32 is: 71,014.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,747.84 : 110,025.60 = 51,472.32 : x
  2. Step 2: Convert to fraction form
    79,747.84/110,025.60 = 51,472.32/x
  3. Step 3: Cross multiply
    79,747.84x = 110,025.60 × 51,472.32
  4. Step 4: Simplify right side
    79,747.84x = 5,663,272,891.39
  5. Step 5: Solve for x
    x = 5,663,272,891.39/79,747.84
  6. Step 6: Final answer
    x = 71,014.75

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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.