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Finding the Fourth Proportional to 92,589.85, 138,075.47 and 82,383.85

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Solution

The fourth proportional to 92,589.85, 138,075.47 and 82,383.85 is: 122,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,589.85 : 138,075.47 = 82,383.85 : x
  2. Step 2: Convert to fraction form
    92,589.85/138,075.47 = 82,383.85/x
  3. Step 3: Cross multiply
    92,589.85x = 138,075.47 × 82,383.85
  4. Step 4: Simplify right side
    92,589.85x = 11,375,188,878.77
  5. Step 5: Solve for x
    x = 11,375,188,878.77/92,589.85
  6. Step 6: Final answer
    x = 122,855.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.