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Finding the Fourth Proportional to 56,379.59, 77,801.81 and 32,181.80

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Solution

The fourth proportional to 56,379.59, 77,801.81 and 32,181.80 is: 44,409.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,379.59 : 77,801.81 = 32,181.80 : x
  2. Step 2: Convert to fraction form
    56,379.59/77,801.81 = 32,181.80/x
  3. Step 3: Cross multiply
    56,379.59x = 77,801.81 × 32,181.80
  4. Step 4: Simplify right side
    56,379.59x = 2,503,801,739.14
  5. Step 5: Solve for x
    x = 2,503,801,739.14/56,379.59
  6. Step 6: Final answer
    x = 44,409.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.