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Finding the Fourth Proportional to 404,065.36, 606,166.08 and 123,517

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Solution

The fourth proportional to 404,065.36, 606,166.08 and 123,517 is: 185,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,065.36 : 606,166.08 = 123,517 : x
  2. Step 2: Convert to fraction form
    404,065.36/606,166.08 = 123,517/x
  3. Step 3: Cross multiply
    404,065.36x = 606,166.08 × 123,517
  4. Step 4: Simplify right side
    404,065.36x = 74,871,815,703.36
  5. Step 5: Solve for x
    x = 74,871,815,703.36/404,065.36
  6. Step 6: Final answer
    x = 185,296.30

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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.