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Finding the Fourth Proportional to 73,113.85, 100,897.44 and 39,579.85

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Solution

The fourth proportional to 73,113.85, 100,897.44 and 39,579.85 is: 54,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,113.85 : 100,897.44 = 39,579.85 : x
  2. Step 2: Convert to fraction form
    73,113.85/100,897.44 = 39,579.85/x
  3. Step 3: Cross multiply
    73,113.85x = 100,897.44 × 39,579.85
  4. Step 4: Simplify right side
    73,113.85x = 3,993,505,342.68
  5. Step 5: Solve for x
    x = 3,993,505,342.68/73,113.85
  6. Step 6: Final answer
    x = 54,620.37

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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.