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Finding the Fourth Proportional to 92,171.53, 138,257.22 and 25,611.63

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Solution

The fourth proportional to 92,171.53, 138,257.22 and 25,611.63 is: 38,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,171.53 : 138,257.22 = 25,611.63 : x
  2. Step 2: Convert to fraction form
    92,171.53/138,257.22 = 25,611.63/x
  3. Step 3: Cross multiply
    92,171.53x = 138,257.22 × 25,611.63
  4. Step 4: Simplify right side
    92,171.53x = 3,540,992,763.47
  5. Step 5: Solve for x
    x = 3,540,992,763.47/92,171.53
  6. Step 6: Final answer
    x = 38,417.42

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1.5x scale

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.