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Finding the Fourth Proportional to 73,969.08, 110,950.74 and 40,755

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Solution

The fourth proportional to 73,969.08, 110,950.74 and 40,755 is: 61,130.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,969.08 : 110,950.74 = 40,755 : x
  2. Step 2: Convert to fraction form
    73,969.08/110,950.74 = 40,755/x
  3. Step 3: Cross multiply
    73,969.08x = 110,950.74 × 40,755
  4. Step 4: Simplify right side
    73,969.08x = 4,521,797,408.70
  5. Step 5: Solve for x
    x = 4,521,797,408.70/73,969.08
  6. Step 6: Final answer
    x = 61,130.91

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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.