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Finding the Fourth Proportional to 79,114.96, 109,178.74 and 43,307.24

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Solution

The fourth proportional to 79,114.96, 109,178.74 and 43,307.24 is: 59,764.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,114.96 : 109,178.74 = 43,307.24 : x
  2. Step 2: Convert to fraction form
    79,114.96/109,178.74 = 43,307.24/x
  3. Step 3: Cross multiply
    79,114.96x = 109,178.74 × 43,307.24
  4. Step 4: Simplify right side
    79,114.96x = 4,728,229,896.08
  5. Step 5: Solve for x
    x = 4,728,229,896.08/79,114.96
  6. Step 6: Final answer
    x = 59,764.04

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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.