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Finding the Fourth Proportional to 79,785.52, 110,104.53 and 43,975.53

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Solution

The fourth proportional to 79,785.52, 110,104.53 and 43,975.53 is: 60,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,785.52 : 110,104.53 = 43,975.53 : x
  2. Step 2: Convert to fraction form
    79,785.52/110,104.53 = 43,975.53/x
  3. Step 3: Cross multiply
    79,785.52x = 110,104.53 × 43,975.53
  4. Step 4: Simplify right side
    79,785.52x = 4,841,904,842.27
  5. Step 5: Solve for x
    x = 4,841,904,842.27/79,785.52
  6. Step 6: Final answer
    x = 60,686.51

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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.