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Finding the Fourth Proportional to 422,589.61, 633,907.50 and 107,049.25

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Solution

The fourth proportional to 422,589.61, 633,907.50 and 107,049.25 is: 160,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,589.61 : 633,907.50 = 107,049.25 : x
  2. Step 2: Convert to fraction form
    422,589.61/633,907.50 = 107,049.25/x
  3. Step 3: Cross multiply
    422,589.61x = 633,907.50 × 107,049.25
  4. Step 4: Simplify right side
    422,589.61x = 67,859,322,444.38
  5. Step 5: Solve for x
    x = 67,859,322,444.38/422,589.61
  6. Step 6: Final answer
    x = 160,579.72

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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.