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Finding the Fourth Proportional to 192,755.88, 289,137.66 and 52,518.12

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Solution

The fourth proportional to 192,755.88, 289,137.66 and 52,518.12 is: 78,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,755.88 : 289,137.66 = 52,518.12 : x
  2. Step 2: Convert to fraction form
    192,755.88/289,137.66 = 52,518.12/x
  3. Step 3: Cross multiply
    192,755.88x = 289,137.66 × 52,518.12
  4. Step 4: Simplify right side
    192,755.88x = 15,184,966,324.40
  5. Step 5: Solve for x
    x = 15,184,966,324.40/192,755.88
  6. Step 6: Final answer
    x = 78,778.23

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1.5x scale

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.