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Finding the Fourth Proportional to 73,687.72, 110,449.50 and 29,302.60

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Solution

The fourth proportional to 73,687.72, 110,449.50 and 29,302.60 is: 43,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,687.72 : 110,449.50 = 29,302.60 : x
  2. Step 2: Convert to fraction form
    73,687.72/110,449.50 = 29,302.60/x
  3. Step 3: Cross multiply
    73,687.72x = 110,449.50 × 29,302.60
  4. Step 4: Simplify right side
    73,687.72x = 3,236,457,518.70
  5. Step 5: Solve for x
    x = 3,236,457,518.70/73,687.72
  6. Step 6: Final answer
    x = 43,921.26

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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.