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Finding the Fourth Proportional to 72,606.67, 108,906.09 and 22,681.04

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Solution

The fourth proportional to 72,606.67, 108,906.09 and 22,681.04 is: 34,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,606.67 : 108,906.09 = 22,681.04 : x
  2. Step 2: Convert to fraction form
    72,606.67/108,906.09 = 22,681.04/x
  3. Step 3: Cross multiply
    72,606.67x = 108,906.09 × 22,681.04
  4. Step 4: Simplify right side
    72,606.67x = 2,470,102,753.95
  5. Step 5: Solve for x
    x = 2,470,102,753.95/72,606.67
  6. Step 6: Final answer
    x = 34,020.33

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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.