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Finding the Fourth Proportional to 321,263.64, 481,755.60 and 171,470.52

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Solution

The fourth proportional to 321,263.64, 481,755.60 and 171,470.52 is: 257,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,263.64 : 481,755.60 = 171,470.52 : x
  2. Step 2: Convert to fraction form
    321,263.64/481,755.60 = 171,470.52/x
  3. Step 3: Cross multiply
    321,263.64x = 481,755.60 × 171,470.52
  4. Step 4: Simplify right side
    321,263.64x = 82,606,883,244.91
  5. Step 5: Solve for x
    x = 82,606,883,244.91/321,263.64
  6. Step 6: Final answer
    x = 257,131.13

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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.