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Finding the Fourth Proportional to 136,788.48, 205,042.42 and 52,525.96

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Solution

The fourth proportional to 136,788.48, 205,042.42 and 52,525.96 is: 78,735.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,788.48 : 205,042.42 = 52,525.96 : x
  2. Step 2: Convert to fraction form
    136,788.48/205,042.42 = 52,525.96/x
  3. Step 3: Cross multiply
    136,788.48x = 205,042.42 × 52,525.96
  4. Step 4: Simplify right side
    136,788.48x = 10,770,049,951.22
  5. Step 5: Solve for x
    x = 10,770,049,951.22/136,788.48
  6. Step 6: Final answer
    x = 78,735.07

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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.