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Finding the Fourth Proportional to 404,694.80, 607,115.10 and 168,061.40

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Solution

The fourth proportional to 404,694.80, 607,115.10 and 168,061.40 is: 252,122.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,694.80 : 607,115.10 = 168,061.40 : x
  2. Step 2: Convert to fraction form
    404,694.80/607,115.10 = 168,061.40/x
  3. Step 3: Cross multiply
    404,694.80x = 607,115.10 × 168,061.40
  4. Step 4: Simplify right side
    404,694.80x = 102,032,613,667.14
  5. Step 5: Solve for x
    x = 102,032,613,667.14/404,694.80
  6. Step 6: Final answer
    x = 252,122.37

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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.