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Finding the Fourth Proportional to 92,168.69, 138,260.52 and 25,608.81

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Solution

The fourth proportional to 92,168.69, 138,260.52 and 25,608.81 is: 38,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,168.69 : 138,260.52 = 25,608.81 : x
  2. Step 2: Convert to fraction form
    92,168.69/138,260.52 = 25,608.81/x
  3. Step 3: Cross multiply
    92,168.69x = 138,260.52 × 25,608.81
  4. Step 4: Simplify right side
    92,168.69x = 3,540,687,905.66
  5. Step 5: Solve for x
    x = 3,540,687,905.66/92,168.69
  6. Step 6: Final answer
    x = 38,415.30

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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.