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Finding the Fourth Proportional to 73,515.76, 110,310.12 and 29,141.56

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Solution

The fourth proportional to 73,515.76, 110,310.12 and 29,141.56 is: 43,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,515.76 : 110,310.12 = 29,141.56 : x
  2. Step 2: Convert to fraction form
    73,515.76/110,310.12 = 29,141.56/x
  3. Step 3: Cross multiply
    73,515.76x = 110,310.12 × 29,141.56
  4. Step 4: Simplify right side
    73,515.76x = 3,214,608,980.59
  5. Step 5: Solve for x
    x = 3,214,608,980.59/73,515.76
  6. Step 6: Final answer
    x = 43,726.80

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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.