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Finding the Fourth Proportional to 225,751.96, 338,662.99 and 75,980.57

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Solution

The fourth proportional to 225,751.96, 338,662.99 and 75,980.57 is: 113,982.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,751.96 : 338,662.99 = 75,980.57 : x
  2. Step 2: Convert to fraction form
    225,751.96/338,662.99 = 75,980.57/x
  3. Step 3: Cross multiply
    225,751.96x = 338,662.99 × 75,980.57
  4. Step 4: Simplify right side
    225,751.96x = 25,731,805,419.77
  5. Step 5: Solve for x
    x = 25,731,805,419.77/225,751.96
  6. Step 6: Final answer
    x = 113,982.64

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1.5x scale

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.