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Finding the Fourth Proportional to 92,121.53, 138,166.83 and 25,568.42

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Solution

The fourth proportional to 92,121.53, 138,166.83 and 25,568.42 is: 38,348.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,121.53 : 138,166.83 = 25,568.42 : x
  2. Step 2: Convert to fraction form
    92,121.53/138,166.83 = 25,568.42/x
  3. Step 3: Cross multiply
    92,121.53x = 138,166.83 × 25,568.42
  4. Step 4: Simplify right side
    92,121.53x = 3,532,706,848.67
  5. Step 5: Solve for x
    x = 3,532,706,848.67/92,121.53
  6. Step 6: Final answer
    x = 38,348.33

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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.