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Finding the Fourth Proportional to 92,136, 138,204 and 26,472

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Solution

The fourth proportional to 92,136, 138,204 and 26,472 is: 39,708

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,136 : 138,204 = 26,472 : x
  2. Step 2: Convert to fraction form
    92,136/138,204 = 26,472/x
  3. Step 3: Cross multiply
    92,136x = 138,204 × 26,472
  4. Step 4: Simplify right side
    92,136x = 3,658,536,288
  5. Step 5: Solve for x
    x = 3,658,536,288/92,136
  6. Step 6: Final answer
    x = 39,708

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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.