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Finding the Fourth Proportional to 169,725.69, 254,621.36 and 57,424.21

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Solution

The fourth proportional to 169,725.69, 254,621.36 and 57,424.21 is: 86,147.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,725.69 : 254,621.36 = 57,424.21 : x
  2. Step 2: Convert to fraction form
    169,725.69/254,621.36 = 57,424.21/x
  3. Step 3: Cross multiply
    169,725.69x = 254,621.36 × 57,424.21
  4. Step 4: Simplify right side
    169,725.69x = 14,621,430,447.13
  5. Step 5: Solve for x
    x = 14,621,430,447.13/169,725.69
  6. Step 6: Final answer
    x = 86,147.42

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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.