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Finding the Fourth Proportional to 92,170.53, 138,255.72 and 25,610.63

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Solution

The fourth proportional to 92,170.53, 138,255.72 and 25,610.63 is: 38,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,170.53 : 138,255.72 = 25,610.63 : x
  2. Step 2: Convert to fraction form
    92,170.53/138,255.72 = 25,610.63/x
  3. Step 3: Cross multiply
    92,170.53x = 138,255.72 × 25,610.63
  4. Step 4: Simplify right side
    92,170.53x = 3,540,815,302.99
  5. Step 5: Solve for x
    x = 3,540,815,302.99/92,170.53
  6. Step 6: Final answer
    x = 38,415.92

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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.