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Finding the Fourth Proportional to 70,550.13, 105,859.79 and 33,113.25

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Solution

The fourth proportional to 70,550.13, 105,859.79 and 33,113.25 is: 49,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,550.13 : 105,859.79 = 33,113.25 : x
  2. Step 2: Convert to fraction form
    70,550.13/105,859.79 = 33,113.25/x
  3. Step 3: Cross multiply
    70,550.13x = 105,859.79 × 33,113.25
  4. Step 4: Simplify right side
    70,550.13x = 3,505,361,252.85
  5. Step 5: Solve for x
    x = 3,505,361,252.85/70,550.13
  6. Step 6: Final answer
    x = 49,686.11

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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.