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Finding the Fourth Proportional to 319,352.10, 479,343.31 and 169,591.96

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Solution

The fourth proportional to 319,352.10, 479,343.31 and 169,591.96 is: 254,555.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,352.10 : 479,343.31 = 169,591.96 : x
  2. Step 2: Convert to fraction form
    319,352.10/479,343.31 = 169,591.96/x
  3. Step 3: Cross multiply
    319,352.10x = 479,343.31 × 169,591.96
  4. Step 4: Simplify right side
    319,352.10x = 81,292,771,455.79
  5. Step 5: Solve for x
    x = 81,292,771,455.79/319,352.10
  6. Step 6: Final answer
    x = 254,555.31

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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.