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Finding the Fourth Proportional to 91,857.64, 137,787.20 and 25,301.44

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Solution

The fourth proportional to 91,857.64, 137,787.20 and 25,301.44 is: 37,952.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,857.64 : 137,787.20 = 25,301.44 : x
  2. Step 2: Convert to fraction form
    91,857.64/137,787.20 = 25,301.44/x
  3. Step 3: Cross multiply
    91,857.64x = 137,787.20 × 25,301.44
  4. Step 4: Simplify right side
    91,857.64x = 3,486,214,573.57
  5. Step 5: Solve for x
    x = 3,486,214,573.57/91,857.64
  6. Step 6: Final answer
    x = 37,952.36

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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.