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Finding the Fourth Proportional to 169,474.41, 254,252.66 and 51,138.54

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Solution

The fourth proportional to 169,474.41, 254,252.66 and 51,138.54 is: 76,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,474.41 : 254,252.66 = 51,138.54 : x
  2. Step 2: Convert to fraction form
    169,474.41/254,252.66 = 51,138.54/x
  3. Step 3: Cross multiply
    169,474.41x = 254,252.66 × 51,138.54
  4. Step 4: Simplify right side
    169,474.41x = 13,002,109,567.82
  5. Step 5: Solve for x
    x = 13,002,109,567.82/169,474.41
  6. Step 6: Final answer
    x = 76,720.19

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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.