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Finding the Fourth Proportional to 169,887.90, 254,672.69 and 57,489.43

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Solution

The fourth proportional to 169,887.90, 254,672.69 and 57,489.43 is: 86,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,887.90 : 254,672.69 = 57,489.43 : x
  2. Step 2: Convert to fraction form
    169,887.90/254,672.69 = 57,489.43/x
  3. Step 3: Cross multiply
    169,887.90x = 254,672.69 × 57,489.43
  4. Step 4: Simplify right side
    169,887.90x = 14,640,987,497.22
  5. Step 5: Solve for x
    x = 14,640,987,497.22/169,887.90
  6. Step 6: Final answer
    x = 86,180.28

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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.