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Finding the Fourth Proportional to 331,656.70, 497,436.44 and 163,131.79

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Solution

The fourth proportional to 331,656.70, 497,436.44 and 163,131.79 is: 244,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,656.70 : 497,436.44 = 163,131.79 : x
  2. Step 2: Convert to fraction form
    331,656.70/497,436.44 = 163,131.79/x
  3. Step 3: Cross multiply
    331,656.70x = 497,436.44 × 163,131.79
  4. Step 4: Simplify right side
    331,656.70x = 81,147,696,868.43
  5. Step 5: Solve for x
    x = 81,147,696,868.43/331,656.70
  6. Step 6: Final answer
    x = 244,673.78

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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.