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Finding the Fourth Proportional to 69,121.44, 103,737.52 and 35,851.04

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Solution

The fourth proportional to 69,121.44, 103,737.52 and 35,851.04 is: 53,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121.44 : 103,737.52 = 35,851.04 : x
  2. Step 2: Convert to fraction form
    69,121.44/103,737.52 = 35,851.04/x
  3. Step 3: Cross multiply
    69,121.44x = 103,737.52 × 35,851.04
  4. Step 4: Simplify right side
    69,121.44x = 3,719,097,979.02
  5. Step 5: Solve for x
    x = 3,719,097,979.02/69,121.44
  6. Step 6: Final answer
    x = 53,805.27

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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.