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Finding the Fourth Proportional to 72,601.80, 108,898.78 and 22,676.16

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Solution

The fourth proportional to 72,601.80, 108,898.78 and 22,676.16 is: 34,013.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,601.80 : 108,898.78 = 22,676.16 : x
  2. Step 2: Convert to fraction form
    72,601.80/108,898.78 = 22,676.16/x
  3. Step 3: Cross multiply
    72,601.80x = 108,898.78 × 22,676.16
  4. Step 4: Simplify right side
    72,601.80x = 2,469,406,045.70
  5. Step 5: Solve for x
    x = 2,469,406,045.70/72,601.80
  6. Step 6: Final answer
    x = 34,013.02

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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.