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Finding the Fourth Proportional to 73,736.48, 110,505.92 and 69,012.64

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Solution

The fourth proportional to 73,736.48, 110,505.92 and 69,012.64 is: 103,426.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,736.48 : 110,505.92 = 69,012.64 : x
  2. Step 2: Convert to fraction form
    73,736.48/110,505.92 = 69,012.64/x
  3. Step 3: Cross multiply
    73,736.48x = 110,505.92 × 69,012.64
  4. Step 4: Simplify right side
    73,736.48x = 7,626,305,274.83
  5. Step 5: Solve for x
    x = 7,626,305,274.83/73,736.48
  6. Step 6: Final answer
    x = 103,426.49

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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.