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Finding the Fourth Proportional to 169,140.72, 253,690.92 and 44,491.44

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Solution

The fourth proportional to 169,140.72, 253,690.92 and 44,491.44 is: 66,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,140.72 : 253,690.92 = 44,491.44 : x
  2. Step 2: Convert to fraction form
    169,140.72/253,690.92 = 44,491.44/x
  3. Step 3: Cross multiply
    169,140.72x = 253,690.92 × 44,491.44
  4. Step 4: Simplify right side
    169,140.72x = 11,287,074,345.72
  5. Step 5: Solve for x
    x = 11,287,074,345.72/169,140.72
  6. Step 6: Final answer
    x = 66,731.86

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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.