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Finding the Fourth Proportional to 192,612.63, 288,918.12 and 52,370.85

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Solution

The fourth proportional to 192,612.63, 288,918.12 and 52,370.85 is: 78,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,612.63 : 288,918.12 = 52,370.85 : x
  2. Step 2: Convert to fraction form
    192,612.63/288,918.12 = 52,370.85/x
  3. Step 3: Cross multiply
    192,612.63x = 288,918.12 × 52,370.85
  4. Step 4: Simplify right side
    192,612.63x = 15,130,887,524.80
  5. Step 5: Solve for x
    x = 15,130,887,524.80/192,612.63
  6. Step 6: Final answer
    x = 78,556.05

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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.