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Finding the Fourth Proportional to 92,135.70, 138,276.45 and 36,002.70

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Solution

The fourth proportional to 92,135.70, 138,276.45 and 36,002.70 is: 54,032.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,135.70 : 138,276.45 = 36,002.70 : x
  2. Step 2: Convert to fraction form
    92,135.70/138,276.45 = 36,002.70/x
  3. Step 3: Cross multiply
    92,135.70x = 138,276.45 × 36,002.70
  4. Step 4: Simplify right side
    92,135.70x = 4,978,325,546.42
  5. Step 5: Solve for x
    x = 4,978,325,546.42/92,135.70
  6. Step 6: Final answer
    x = 54,032.54

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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.