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Finding the Fourth Proportional to 79,801.41, 110,124.76 and 43,990.65

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Solution

The fourth proportional to 79,801.41, 110,124.76 and 43,990.65 is: 60,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,801.41 : 110,124.76 = 43,990.65 : x
  2. Step 2: Convert to fraction form
    79,801.41/110,124.76 = 43,990.65/x
  3. Step 3: Cross multiply
    79,801.41x = 110,124.76 × 43,990.65
  4. Step 4: Simplify right side
    79,801.41x = 4,844,459,773.49
  5. Step 5: Solve for x
    x = 4,844,459,773.49/79,801.41
  6. Step 6: Final answer
    x = 60,706.44

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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.