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Finding the Fourth Proportional to 171,864.40, 257,796.60 and 169,531.60

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Solution

The fourth proportional to 171,864.40, 257,796.60 and 169,531.60 is: 254,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,864.40 : 257,796.60 = 169,531.60 : x
  2. Step 2: Convert to fraction form
    171,864.40/257,796.60 = 169,531.60/x
  3. Step 3: Cross multiply
    171,864.40x = 257,796.60 × 169,531.60
  4. Step 4: Simplify right side
    171,864.40x = 43,704,670,072.56
  5. Step 5: Solve for x
    x = 43,704,670,072.56/171,864.40
  6. Step 6: Final answer
    x = 254,297.40

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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.