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Finding the Fourth Proportional to 68,752.30, 103,138.34 and 26,073.44

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Solution

The fourth proportional to 68,752.30, 103,138.34 and 26,073.44 is: 39,113.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,752.30 : 103,138.34 = 26,073.44 : x
  2. Step 2: Convert to fraction form
    68,752.30/103,138.34 = 26,073.44/x
  3. Step 3: Cross multiply
    68,752.30x = 103,138.34 × 26,073.44
  4. Step 4: Simplify right side
    68,752.30x = 2,689,171,319.69
  5. Step 5: Solve for x
    x = 2,689,171,319.69/68,752.30
  6. Step 6: Final answer
    x = 39,113.91

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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.