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Finding the Fourth Proportional to 92,961.57, 139,364.65 and 43,077.42

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Solution

The fourth proportional to 92,961.57, 139,364.65 and 43,077.42 is: 64,580.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,961.57 : 139,364.65 = 43,077.42 : x
  2. Step 2: Convert to fraction form
    92,961.57/139,364.65 = 43,077.42/x
  3. Step 3: Cross multiply
    92,961.57x = 139,364.65 × 43,077.42
  4. Step 4: Simplify right side
    92,961.57x = 6,003,469,615.05
  5. Step 5: Solve for x
    x = 6,003,469,615.05/92,961.57
  6. Step 6: Final answer
    x = 64,580.12

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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.