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Finding the Fourth Proportional to 72,174.48, 108,195.48 and 27,787.92

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Solution

The fourth proportional to 72,174.48, 108,195.48 and 27,787.92 is: 41,656.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,174.48 : 108,195.48 = 27,787.92 : x
  2. Step 2: Convert to fraction form
    72,174.48/108,195.48 = 27,787.92/x
  3. Step 3: Cross multiply
    72,174.48x = 108,195.48 × 27,787.92
  4. Step 4: Simplify right side
    72,174.48x = 3,006,527,342.60
  5. Step 5: Solve for x
    x = 3,006,527,342.60/72,174.48
  6. Step 6: Final answer
    x = 41,656.38

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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.