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Finding the Fourth Proportional to 404,719.80, 606,593.70 and 167,940.60

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Solution

The fourth proportional to 404,719.80, 606,593.70 and 167,940.60 is: 251,709.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,719.80 : 606,593.70 = 167,940.60 : x
  2. Step 2: Convert to fraction form
    404,719.80/606,593.70 = 167,940.60/x
  3. Step 3: Cross multiply
    404,719.80x = 606,593.70 × 167,940.60
  4. Step 4: Simplify right side
    404,719.80x = 101,871,709,934.22
  5. Step 5: Solve for x
    x = 101,871,709,934.22/404,719.80
  6. Step 6: Final answer
    x = 251,709.23

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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.