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Finding the Fourth Proportional to 323,245.99, 484,376.89 and 154,534.43

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Solution

The fourth proportional to 323,245.99, 484,376.89 and 154,534.43 is: 231,566.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,245.99 : 484,376.89 = 154,534.43 : x
  2. Step 2: Convert to fraction form
    323,245.99/484,376.89 = 154,534.43/x
  3. Step 3: Cross multiply
    323,245.99x = 484,376.89 × 154,534.43
  4. Step 4: Simplify right side
    323,245.99x = 74,852,906,601.32
  5. Step 5: Solve for x
    x = 74,852,906,601.32/323,245.99
  6. Step 6: Final answer
    x = 231,566.39

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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.