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Finding the Fourth Proportional to 79,765.91, 110,077.15 and 43,467.63

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Solution

The fourth proportional to 79,765.91, 110,077.15 and 43,467.63 is: 59,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,765.91 : 110,077.15 = 43,467.63 : x
  2. Step 2: Convert to fraction form
    79,765.91/110,077.15 = 43,467.63/x
  3. Step 3: Cross multiply
    79,765.91x = 110,077.15 × 43,467.63
  4. Step 4: Simplify right side
    79,765.91x = 4,784,792,827.65
  5. Step 5: Solve for x
    x = 4,784,792,827.65/79,765.91
  6. Step 6: Final answer
    x = 59,985.44

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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.