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Finding the Fourth Proportional to 92,062.85, 138,094.29 and 28,892.73

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Solution

The fourth proportional to 92,062.85, 138,094.29 and 28,892.73 is: 43,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,062.85 : 138,094.29 = 28,892.73 : x
  2. Step 2: Convert to fraction form
    92,062.85/138,094.29 = 28,892.73/x
  3. Step 3: Cross multiply
    92,062.85x = 138,094.29 × 28,892.73
  4. Step 4: Simplify right side
    92,062.85x = 3,989,920,469.46
  5. Step 5: Solve for x
    x = 3,989,920,469.46/92,062.85
  6. Step 6: Final answer
    x = 43,339.09

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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.