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Finding the Fourth Proportional to 69,725.88, 104,590.14 and 22,979.16

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Solution

The fourth proportional to 69,725.88, 104,590.14 and 22,979.16 is: 34,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,725.88 : 104,590.14 = 22,979.16 : x
  2. Step 2: Convert to fraction form
    69,725.88/104,590.14 = 22,979.16/x
  3. Step 3: Cross multiply
    69,725.88x = 104,590.14 × 22,979.16
  4. Step 4: Simplify right side
    69,725.88x = 2,403,393,561.48
  5. Step 5: Solve for x
    x = 2,403,393,561.48/69,725.88
  6. Step 6: Final answer
    x = 34,469.18

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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.