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Finding the Fourth Proportional to 91,751.13, 137,626.92 and 25,192.17

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Solution

The fourth proportional to 91,751.13, 137,626.92 and 25,192.17 is: 37,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,751.13 : 137,626.92 = 25,192.17 : x
  2. Step 2: Convert to fraction form
    91,751.13/137,626.92 = 25,192.17/x
  3. Step 3: Cross multiply
    91,751.13x = 137,626.92 × 25,192.17
  4. Step 4: Simplify right side
    91,751.13x = 3,467,120,765.22
  5. Step 5: Solve for x
    x = 3,467,120,765.22/91,751.13
  6. Step 6: Final answer
    x = 37,788.32

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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.