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Finding the Fourth Proportional to 404,844.45, 606,938.55 and 168,364.14

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Solution

The fourth proportional to 404,844.45, 606,938.55 and 168,364.14 is: 252,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,844.45 : 606,938.55 = 168,364.14 : x
  2. Step 2: Convert to fraction form
    404,844.45/606,938.55 = 168,364.14/x
  3. Step 3: Cross multiply
    404,844.45x = 606,938.55 × 168,364.14
  4. Step 4: Simplify right side
    404,844.45x = 102,186,687,003.60
  5. Step 5: Solve for x
    x = 102,186,687,003.60/404,844.45
  6. Step 6: Final answer
    x = 252,409.75

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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.