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Finding the Fourth Proportional to 91,954.93, 137,934.12 and 25,396.82

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Solution

The fourth proportional to 91,954.93, 137,934.12 and 25,396.82 is: 38,095.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,954.93 : 137,934.12 = 25,396.82 : x
  2. Step 2: Convert to fraction form
    91,954.93/137,934.12 = 25,396.82/x
  3. Step 3: Cross multiply
    91,954.93x = 137,934.12 × 25,396.82
  4. Step 4: Simplify right side
    91,954.93x = 3,503,087,890.51
  5. Step 5: Solve for x
    x = 3,503,087,890.51/91,954.93
  6. Step 6: Final answer
    x = 38,095.71

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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.