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Finding the Fourth Proportional to 63,900.30, 95,764.05 and 56,469.90

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Solution

The fourth proportional to 63,900.30, 95,764.05 and 56,469.90 is: 84,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,900.30 : 95,764.05 = 56,469.90 : x
  2. Step 2: Convert to fraction form
    63,900.30/95,764.05 = 56,469.90/x
  3. Step 3: Cross multiply
    63,900.30x = 95,764.05 × 56,469.90
  4. Step 4: Simplify right side
    63,900.30x = 5,407,786,327.10
  5. Step 5: Solve for x
    x = 5,407,786,327.10/63,900.30
  6. Step 6: Final answer
    x = 84,628.50

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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.