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Finding the Fourth Proportional to 72,092.70, 108,150.29 and 34,645.79

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Solution

The fourth proportional to 72,092.70, 108,150.29 and 34,645.79 is: 51,974.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,092.70 : 108,150.29 = 34,645.79 : x
  2. Step 2: Convert to fraction form
    72,092.70/108,150.29 = 34,645.79/x
  3. Step 3: Cross multiply
    72,092.70x = 108,150.29 × 34,645.79
  4. Step 4: Simplify right side
    72,092.70x = 3,746,952,462.85
  5. Step 5: Solve for x
    x = 3,746,952,462.85/72,092.70
  6. Step 6: Final answer
    x = 51,974.09

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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.