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Finding the Fourth Proportional to 171,926.20, 257,889.30 and 169,301.80

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Solution

The fourth proportional to 171,926.20, 257,889.30 and 169,301.80 is: 253,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,926.20 : 257,889.30 = 169,301.80 : x
  2. Step 2: Convert to fraction form
    171,926.20/257,889.30 = 169,301.80/x
  3. Step 3: Cross multiply
    171,926.20x = 257,889.30 × 169,301.80
  4. Step 4: Simplify right side
    171,926.20x = 43,661,122,690.74
  5. Step 5: Solve for x
    x = 43,661,122,690.74/171,926.20
  6. Step 6: Final answer
    x = 253,952.70

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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.