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Finding the Fourth Proportional to 79,530.41, 109,754.08 and 43,234.31

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Solution

The fourth proportional to 79,530.41, 109,754.08 and 43,234.31 is: 59,664.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,530.41 : 109,754.08 = 43,234.31 : x
  2. Step 2: Convert to fraction form
    79,530.41/109,754.08 = 43,234.31/x
  3. Step 3: Cross multiply
    79,530.41x = 109,754.08 × 43,234.31
  4. Step 4: Simplify right side
    79,530.41x = 4,745,141,918.48
  5. Step 5: Solve for x
    x = 4,745,141,918.48/79,530.41
  6. Step 6: Final answer
    x = 59,664.50

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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.