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Finding the Fourth Proportional to 79,466.74, 109,664.92 and 43,168.55

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Solution

The fourth proportional to 79,466.74, 109,664.92 and 43,168.55 is: 59,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,466.74 : 109,664.92 = 43,168.55 : x
  2. Step 2: Convert to fraction form
    79,466.74/109,664.92 = 43,168.55/x
  3. Step 3: Cross multiply
    79,466.74x = 109,664.92 × 43,168.55
  4. Step 4: Simplify right side
    79,466.74x = 4,734,075,087.90
  5. Step 5: Solve for x
    x = 4,734,075,087.90/79,466.74
  6. Step 6: Final answer
    x = 59,573.04

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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.