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Finding the Fourth Proportional to 73,006.54, 100,749.17 and 39,472.54

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Solution

The fourth proportional to 73,006.54, 100,749.17 and 39,472.54 is: 54,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,006.54 : 100,749.17 = 39,472.54 : x
  2. Step 2: Convert to fraction form
    73,006.54/100,749.17 = 39,472.54/x
  3. Step 3: Cross multiply
    73,006.54x = 100,749.17 × 39,472.54
  4. Step 4: Simplify right side
    73,006.54x = 3,976,825,642.79
  5. Step 5: Solve for x
    x = 3,976,825,642.79/73,006.54
  6. Step 6: Final answer
    x = 54,472.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.