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Finding the Fourth Proportional to 91,132, 136,698 and 25,468

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Solution

The fourth proportional to 91,132, 136,698 and 25,468 is: 38,202

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,132 : 136,698 = 25,468 : x
  2. Step 2: Convert to fraction form
    91,132/136,698 = 25,468/x
  3. Step 3: Cross multiply
    91,132x = 136,698 × 25,468
  4. Step 4: Simplify right side
    91,132x = 3,481,424,664
  5. Step 5: Solve for x
    x = 3,481,424,664/91,132
  6. Step 6: Final answer
    x = 38,202

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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.