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Finding the Fourth Proportional to 69,992.10, 104,725.71 and 38,849.22

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Solution

The fourth proportional to 69,992.10, 104,725.71 and 38,849.22 is: 58,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,992.10 : 104,725.71 = 38,849.22 : x
  2. Step 2: Convert to fraction form
    69,992.10/104,725.71 = 38,849.22/x
  3. Step 3: Cross multiply
    69,992.10x = 104,725.71 × 38,849.22
  4. Step 4: Simplify right side
    69,992.10x = 4,068,512,147.45
  5. Step 5: Solve for x
    x = 4,068,512,147.45/69,992.10
  6. Step 6: Final answer
    x = 58,128.16

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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.