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Finding the Fourth Proportional to 63,900.80, 95,764.80 and 56,470.40

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Solution

The fourth proportional to 63,900.80, 95,764.80 and 56,470.40 is: 84,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,900.80 : 95,764.80 = 56,470.40 : x
  2. Step 2: Convert to fraction form
    63,900.80/95,764.80 = 56,470.40/x
  3. Step 3: Cross multiply
    63,900.80x = 95,764.80 × 56,470.40
  4. Step 4: Simplify right side
    63,900.80x = 5,407,876,561.92
  5. Step 5: Solve for x
    x = 5,407,876,561.92/63,900.80
  6. Step 6: Final answer
    x = 84,629.25

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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.