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Finding the Fourth Proportional to 79,182.90, 109,230.96 and 48,958.56

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Solution

The fourth proportional to 79,182.90, 109,230.96 and 48,958.56 is: 67,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,182.90 : 109,230.96 = 48,958.56 : x
  2. Step 2: Convert to fraction form
    79,182.90/109,230.96 = 48,958.56/x
  3. Step 3: Cross multiply
    79,182.90x = 109,230.96 × 48,958.56
  4. Step 4: Simplify right side
    79,182.90x = 5,347,790,509.02
  5. Step 5: Solve for x
    x = 5,347,790,509.02/79,182.90
  6. Step 6: Final answer
    x = 67,537.19

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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.