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Finding the Fourth Proportional to 169,142.72, 253,693.90 and 44,493.44

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Solution

The fourth proportional to 169,142.72, 253,693.90 and 44,493.44 is: 66,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,142.72 : 253,693.90 = 44,493.44 : x
  2. Step 2: Convert to fraction form
    169,142.72/253,693.90 = 44,493.44/x
  3. Step 3: Cross multiply
    169,142.72x = 253,693.90 × 44,493.44
  4. Step 4: Simplify right side
    169,142.72x = 11,287,714,318.02
  5. Step 5: Solve for x
    x = 11,287,714,318.02/169,142.72
  6. Step 6: Final answer
    x = 66,734.85

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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.