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Finding the Fourth Proportional to 79,761.65, 110,075.91 and 43,951.61

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Solution

The fourth proportional to 79,761.65, 110,075.91 and 43,951.61 is: 60,655.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,761.65 : 110,075.91 = 43,951.61 : x
  2. Step 2: Convert to fraction form
    79,761.65/110,075.91 = 43,951.61/x
  3. Step 3: Cross multiply
    79,761.65x = 110,075.91 × 43,951.61
  4. Step 4: Simplify right side
    79,761.65x = 4,838,013,466.72
  5. Step 5: Solve for x
    x = 4,838,013,466.72/79,761.65
  6. Step 6: Final answer
    x = 60,655.88

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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.