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Finding the Fourth Proportional to 79,474.66, 109,675.02 and 43,663.48

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Solution

The fourth proportional to 79,474.66, 109,675.02 and 43,663.48 is: 60,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,474.66 : 109,675.02 = 43,663.48 : x
  2. Step 2: Convert to fraction form
    79,474.66/109,675.02 = 43,663.48/x
  3. Step 3: Cross multiply
    79,474.66x = 109,675.02 × 43,663.48
  4. Step 4: Simplify right side
    79,474.66x = 4,788,793,042.27
  5. Step 5: Solve for x
    x = 4,788,793,042.27/79,474.66
  6. Step 6: Final answer
    x = 60,255.60

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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.