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Finding the Fourth Proportional to 79,458.52, 109,655.22 and 43,647.88

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Solution

The fourth proportional to 79,458.52, 109,655.22 and 43,647.88 is: 60,235.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,458.52 : 109,655.22 = 43,647.88 : x
  2. Step 2: Convert to fraction form
    79,458.52/109,655.22 = 43,647.88/x
  3. Step 3: Cross multiply
    79,458.52x = 109,655.22 × 43,647.88
  4. Step 4: Simplify right side
    79,458.52x = 4,786,217,883.93
  5. Step 5: Solve for x
    x = 4,786,217,883.93/79,458.52
  6. Step 6: Final answer
    x = 60,235.43

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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.