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Finding the Fourth Proportional to 91,653.28, 137,479.84 and 25,094

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Solution

The fourth proportional to 91,653.28, 137,479.84 and 25,094 is: 37,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,653.28 : 137,479.84 = 25,094 : x
  2. Step 2: Convert to fraction form
    91,653.28/137,479.84 = 25,094/x
  3. Step 3: Cross multiply
    91,653.28x = 137,479.84 × 25,094
  4. Step 4: Simplify right side
    91,653.28x = 3,449,919,104.96
  5. Step 5: Solve for x
    x = 3,449,919,104.96/91,653.28
  6. Step 6: Final answer
    x = 37,640.98

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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.