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Finding the Fourth Proportional to 403,884.59, 605,935.97 and 123,394.19

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Solution

The fourth proportional to 403,884.59, 605,935.97 and 123,394.19 is: 185,124.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,884.59 : 605,935.97 = 123,394.19 : x
  2. Step 2: Convert to fraction form
    403,884.59/605,935.97 = 123,394.19/x
  3. Step 3: Cross multiply
    403,884.59x = 605,935.97 × 123,394.19
  4. Step 4: Simplify right side
    403,884.59x = 74,768,974,563.36
  5. Step 5: Solve for x
    x = 74,768,974,563.36/403,884.59
  6. Step 6: Final answer
    x = 185,124.61

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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.