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Finding the Fourth Proportional to 92,965.70, 139,370.84 and 43,081.55

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Solution

The fourth proportional to 92,965.70, 139,370.84 and 43,081.55 is: 64,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,965.70 : 139,370.84 = 43,081.55 : x
  2. Step 2: Convert to fraction form
    92,965.70/139,370.84 = 43,081.55/x
  3. Step 3: Cross multiply
    92,965.70x = 139,370.84 × 43,081.55
  4. Step 4: Simplify right side
    92,965.70x = 6,004,310,899.74
  5. Step 5: Solve for x
    x = 6,004,310,899.74/92,965.70
  6. Step 6: Final answer
    x = 64,586.30

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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.