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Finding the Fourth Proportional to 225,709.60, 338,608.66 and 83,555.97

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Solution

The fourth proportional to 225,709.60, 338,608.66 and 83,555.97 is: 125,350.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,709.60 : 338,608.66 = 83,555.97 : x
  2. Step 2: Convert to fraction form
    225,709.60/338,608.66 = 83,555.97/x
  3. Step 3: Cross multiply
    225,709.60x = 338,608.66 × 83,555.97
  4. Step 4: Simplify right side
    225,709.60x = 28,292,775,036.70
  5. Step 5: Solve for x
    x = 28,292,775,036.70/225,709.60
  6. Step 6: Final answer
    x = 125,350.34

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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.