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Finding the Fourth Proportional to 326,350.31, 489,405.86 and 113,063.14

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Solution

The fourth proportional to 326,350.31, 489,405.86 and 113,063.14 is: 169,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,350.31 : 489,405.86 = 113,063.14 : x
  2. Step 2: Convert to fraction form
    326,350.31/489,405.86 = 113,063.14/x
  3. Step 3: Cross multiply
    326,350.31x = 489,405.86 × 113,063.14
  4. Step 4: Simplify right side
    326,350.31x = 55,333,760,818.97
  5. Step 5: Solve for x
    x = 55,333,760,818.97/326,350.31
  6. Step 6: Final answer
    x = 169,553.27

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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.