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Finding the Fourth Proportional to 72,581.66, 108,888.04 and 25,198.25

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Solution

The fourth proportional to 72,581.66, 108,888.04 and 25,198.25 is: 37,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581.66 : 108,888.04 = 25,198.25 : x
  2. Step 2: Convert to fraction form
    72,581.66/108,888.04 = 25,198.25/x
  3. Step 3: Cross multiply
    72,581.66x = 108,888.04 × 25,198.25
  4. Step 4: Simplify right side
    72,581.66x = 2,743,788,053.93
  5. Step 5: Solve for x
    x = 2,743,788,053.93/72,581.66
  6. Step 6: Final answer
    x = 37,802.78

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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.