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Finding the Fourth Proportional to 58,531.20, 80,773.06 and 31,673.62

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Solution

The fourth proportional to 58,531.20, 80,773.06 and 31,673.62 is: 43,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,531.20 : 80,773.06 = 31,673.62 : x
  2. Step 2: Convert to fraction form
    58,531.20/80,773.06 = 31,673.62/x
  3. Step 3: Cross multiply
    58,531.20x = 80,773.06 × 31,673.62
  4. Step 4: Simplify right side
    58,531.20x = 2,558,375,208.68
  5. Step 5: Solve for x
    x = 2,558,375,208.68/58,531.20
  6. Step 6: Final answer
    x = 43,709.60

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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.