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Finding the Fourth Proportional to 169,273.26, 253,934.50 and 90,344.44

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Solution

The fourth proportional to 169,273.26, 253,934.50 and 90,344.44 is: 135,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,273.26 : 253,934.50 = 90,344.44 : x
  2. Step 2: Convert to fraction form
    169,273.26/253,934.50 = 90,344.44/x
  3. Step 3: Cross multiply
    169,273.26x = 253,934.50 × 90,344.44
  4. Step 4: Simplify right side
    169,273.26x = 22,941,570,199.18
  5. Step 5: Solve for x
    x = 22,941,570,199.18/169,273.26
  6. Step 6: Final answer
    x = 135,529.79

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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.