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Finding the Fourth Proportional to 79,523.88, 119,305.32 and 39,561.72

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Solution

The fourth proportional to 79,523.88, 119,305.32 and 39,561.72 is: 59,352.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,523.88 : 119,305.32 = 39,561.72 : x
  2. Step 2: Convert to fraction form
    79,523.88/119,305.32 = 39,561.72/x
  3. Step 3: Cross multiply
    79,523.88x = 119,305.32 × 39,561.72
  4. Step 4: Simplify right side
    79,523.88x = 4,719,923,664.35
  5. Step 5: Solve for x
    x = 4,719,923,664.35/79,523.88
  6. Step 6: Final answer
    x = 59,352.28

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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.