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Finding the Fourth Proportional to 403,882.34, 605,932.58 and 123,391.94

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Solution

The fourth proportional to 403,882.34, 605,932.58 and 123,391.94 is: 185,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,882.34 : 605,932.58 = 123,391.94 : x
  2. Step 2: Convert to fraction form
    403,882.34/605,932.58 = 123,391.94/x
  3. Step 3: Cross multiply
    403,882.34x = 605,932.58 × 123,391.94
  4. Step 4: Simplify right side
    403,882.34x = 74,767,193,834.22
  5. Step 5: Solve for x
    x = 74,767,193,834.22/403,882.34
  6. Step 6: Final answer
    x = 185,121.23

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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.