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Finding the Fourth Proportional to 139,370.94, 192,309.10 and 82,058.56

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Solution

The fourth proportional to 139,370.94, 192,309.10 and 82,058.56 is: 113,227.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,370.94 : 192,309.10 = 82,058.56 : x
  2. Step 2: Convert to fraction form
    139,370.94/192,309.10 = 82,058.56/x
  3. Step 3: Cross multiply
    139,370.94x = 192,309.10 × 82,058.56
  4. Step 4: Simplify right side
    139,370.94x = 15,780,607,820.90
  5. Step 5: Solve for x
    x = 15,780,607,820.90/139,370.94
  6. Step 6: Final answer
    x = 113,227.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.