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Finding the Fourth Proportional to 84,453.25, 116,550.90 and 48,642.49

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Solution

The fourth proportional to 84,453.25, 116,550.90 and 48,642.49 is: 67,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,453.25 : 116,550.90 = 48,642.49 : x
  2. Step 2: Convert to fraction form
    84,453.25/116,550.90 = 48,642.49/x
  3. Step 3: Cross multiply
    84,453.25x = 116,550.90 × 48,642.49
  4. Step 4: Simplify right side
    84,453.25x = 5,669,325,987.74
  5. Step 5: Solve for x
    x = 5,669,325,987.74/84,453.25
  6. Step 6: Final answer
    x = 67,129.76

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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.