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Finding the Fourth Proportional to 92,676.95, 138,932.19 and 45,265.22

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Solution

The fourth proportional to 92,676.95, 138,932.19 and 45,265.22 is: 67,857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,676.95 : 138,932.19 = 45,265.22 : x
  2. Step 2: Convert to fraction form
    92,676.95/138,932.19 = 45,265.22/x
  3. Step 3: Cross multiply
    92,676.95x = 138,932.19 × 45,265.22
  4. Step 4: Simplify right side
    92,676.95x = 6,288,796,145.43
  5. Step 5: Solve for x
    x = 6,288,796,145.43/92,676.95
  6. Step 6: Final answer
    x = 67,857.18

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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.