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Finding the Fourth Proportional to 403,885.34, 605,937.09 and 123,394.94

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Solution

The fourth proportional to 403,885.34, 605,937.09 and 123,394.94 is: 185,125.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,885.34 : 605,937.09 = 123,394.94 : x
  2. Step 2: Convert to fraction form
    403,885.34/605,937.09 = 123,394.94/x
  3. Step 3: Cross multiply
    403,885.34x = 605,937.09 × 123,394.94
  4. Step 4: Simplify right side
    403,885.34x = 74,769,567,834.64
  5. Step 5: Solve for x
    x = 74,769,567,834.64/403,885.34
  6. Step 6: Final answer
    x = 185,125.73

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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.