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Finding the Fourth Proportional to 79,782.53, 110,099.34 and 43,972.56

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Solution

The fourth proportional to 79,782.53, 110,099.34 and 43,972.56 is: 60,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,782.53 : 110,099.34 = 43,972.56 : x
  2. Step 2: Convert to fraction form
    79,782.53/110,099.34 = 43,972.56/x
  3. Step 3: Cross multiply
    79,782.53x = 110,099.34 × 43,972.56
  4. Step 4: Simplify right side
    79,782.53x = 4,841,349,834.11
  5. Step 5: Solve for x
    x = 4,841,349,834.11/79,782.53
  6. Step 6: Final answer
    x = 60,681.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.