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Finding the Fourth Proportional to 63,490.70, 95,236.86 and 43,763.96

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Solution

The fourth proportional to 63,490.70, 95,236.86 and 43,763.96 is: 65,646.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,490.70 : 95,236.86 = 43,763.96 : x
  2. Step 2: Convert to fraction form
    63,490.70/95,236.86 = 43,763.96/x
  3. Step 3: Cross multiply
    63,490.70x = 95,236.86 × 43,763.96
  4. Step 4: Simplify right side
    63,490.70x = 4,167,942,131.57
  5. Step 5: Solve for x
    x = 4,167,942,131.57/63,490.70
  6. Step 6: Final answer
    x = 65,646.50

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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.