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Finding the Fourth Proportional to 136,194.72, 204,418.48 and 69,682.48

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Solution

The fourth proportional to 136,194.72, 204,418.48 and 69,682.48 is: 104,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,194.72 : 204,418.48 = 69,682.48 : x
  2. Step 2: Convert to fraction form
    136,194.72/204,418.48 = 69,682.48/x
  3. Step 3: Cross multiply
    136,194.72x = 204,418.48 × 69,682.48
  4. Step 4: Simplify right side
    136,194.72x = 14,244,386,644.23
  5. Step 5: Solve for x
    x = 14,244,386,644.23/136,194.72
  6. Step 6: Final answer
    x = 104,588.39

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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.