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Finding the Fourth Proportional to 72,596.48, 108,878.30 and 27,601.79

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Solution

The fourth proportional to 72,596.48, 108,878.30 and 27,601.79 is: 41,396.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,596.48 : 108,878.30 = 27,601.79 : x
  2. Step 2: Convert to fraction form
    72,596.48/108,878.30 = 27,601.79/x
  3. Step 3: Cross multiply
    72,596.48x = 108,878.30 × 27,601.79
  4. Step 4: Simplify right side
    72,596.48x = 3,005,236,013.55
  5. Step 5: Solve for x
    x = 3,005,236,013.55/72,596.48
  6. Step 6: Final answer
    x = 41,396.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.