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Finding the Fourth Proportional to 104,481.96, 144,074.86 and 74,235.80

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Solution

The fourth proportional to 104,481.96, 144,074.86 and 74,235.80 is: 102,367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,481.96 : 144,074.86 = 74,235.80 : x
  2. Step 2: Convert to fraction form
    104,481.96/144,074.86 = 74,235.80/x
  3. Step 3: Cross multiply
    104,481.96x = 144,074.86 × 74,235.80
  4. Step 4: Simplify right side
    104,481.96x = 10,695,512,491.99
  5. Step 5: Solve for x
    x = 10,695,512,491.99/104,481.96
  6. Step 6: Final answer
    x = 102,367.07

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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.