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Finding the Fourth Proportional to 404,556.80, 606,908.10 and 167,923.40

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Solution

The fourth proportional to 404,556.80, 606,908.10 and 167,923.40 is: 251,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,556.80 : 606,908.10 = 167,923.40 : x
  2. Step 2: Convert to fraction form
    404,556.80/606,908.10 = 167,923.40/x
  3. Step 3: Cross multiply
    404,556.80x = 606,908.10 × 167,923.40
  4. Step 4: Simplify right side
    404,556.80x = 101,914,071,639.54
  5. Step 5: Solve for x
    x = 101,914,071,639.54/404,556.80
  6. Step 6: Final answer
    x = 251,915.36

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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.