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Finding the Fourth Proportional to 356,663.49, 492,230.83 and 203,724.56

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Solution

The fourth proportional to 356,663.49, 492,230.83 and 203,724.56 is: 281,160.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,663.49 : 492,230.83 = 203,724.56 : x
  2. Step 2: Convert to fraction form
    356,663.49/492,230.83 = 203,724.56/x
  3. Step 3: Cross multiply
    356,663.49x = 492,230.83 × 203,724.56
  4. Step 4: Simplify right side
    356,663.49x = 100,279,506,799.03
  5. Step 5: Solve for x
    x = 100,279,506,799.03/356,663.49
  6. Step 6: Final answer
    x = 281,160.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.