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Finding the Fourth Proportional to 71,189.96, 106,702.29 and 26,788.41

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Solution

The fourth proportional to 71,189.96, 106,702.29 and 26,788.41 is: 40,151.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,189.96 : 106,702.29 = 26,788.41 : x
  2. Step 2: Convert to fraction form
    71,189.96/106,702.29 = 26,788.41/x
  3. Step 3: Cross multiply
    71,189.96x = 106,702.29 × 26,788.41
  4. Step 4: Simplify right side
    71,189.96x = 2,858,384,692.46
  5. Step 5: Solve for x
    x = 2,858,384,692.46/71,189.96
  6. Step 6: Final answer
    x = 40,151.52

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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.