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Finding the Fourth Proportional to 73,093.26, 100,868.70 and 39,559.26

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Solution

The fourth proportional to 73,093.26, 100,868.70 and 39,559.26 is: 54,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,093.26 : 100,868.70 = 39,559.26 : x
  2. Step 2: Convert to fraction form
    73,093.26/100,868.70 = 39,559.26/x
  3. Step 3: Cross multiply
    73,093.26x = 100,868.70 × 39,559.26
  4. Step 4: Simplify right side
    73,093.26x = 3,990,291,129.16
  5. Step 5: Solve for x
    x = 3,990,291,129.16/73,093.26
  6. Step 6: Final answer
    x = 54,591.78

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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.