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Finding the Fourth Proportional to 72,127.94, 108,180.97 and 25,369.88

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Solution

The fourth proportional to 72,127.94, 108,180.97 and 25,369.88 is: 38,050.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,127.94 : 108,180.97 = 25,369.88 : x
  2. Step 2: Convert to fraction form
    72,127.94/108,180.97 = 25,369.88/x
  3. Step 3: Cross multiply
    72,127.94x = 108,180.97 × 25,369.88
  4. Step 4: Simplify right side
    72,127.94x = 2,744,537,622.85
  5. Step 5: Solve for x
    x = 2,744,537,622.85/72,127.94
  6. Step 6: Final answer
    x = 38,050.97

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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.