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Finding the Fourth Proportional to 79,329.34, 109,475.94 and 43,520.86

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Solution

The fourth proportional to 79,329.34, 109,475.94 and 43,520.86 is: 60,059.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,329.34 : 109,475.94 = 43,520.86 : x
  2. Step 2: Convert to fraction form
    79,329.34/109,475.94 = 43,520.86/x
  3. Step 3: Cross multiply
    79,329.34x = 109,475.94 × 43,520.86
  4. Step 4: Simplify right side
    79,329.34x = 4,764,487,058.11
  5. Step 5: Solve for x
    x = 4,764,487,058.11/79,329.34
  6. Step 6: Final answer
    x = 60,059.58

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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.