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Finding the Fourth Proportional to 69,080.90, 103,676.03 and 26,981.15

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Solution

The fourth proportional to 69,080.90, 103,676.03 and 26,981.15 is: 40,493.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,080.90 : 103,676.03 = 26,981.15 : x
  2. Step 2: Convert to fraction form
    69,080.90/103,676.03 = 26,981.15/x
  3. Step 3: Cross multiply
    69,080.90x = 103,676.03 × 26,981.15
  4. Step 4: Simplify right side
    69,080.90x = 2,797,298,516.83
  5. Step 5: Solve for x
    x = 2,797,298,516.83/69,080.90
  6. Step 6: Final answer
    x = 40,493.08

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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.