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Finding the Fourth Proportional to 225,570.38, 338,329.23 and 90,629.01

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Solution

The fourth proportional to 225,570.38, 338,329.23 and 90,629.01 is: 135,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,570.38 : 338,329.23 = 90,629.01 : x
  2. Step 2: Convert to fraction form
    225,570.38/338,329.23 = 90,629.01/x
  3. Step 3: Cross multiply
    225,570.38x = 338,329.23 × 90,629.01
  4. Step 4: Simplify right side
    225,570.38x = 30,662,443,168.96
  5. Step 5: Solve for x
    x = 30,662,443,168.96/225,570.38
  6. Step 6: Final answer
    x = 135,932.93

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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.