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Finding the Fourth Proportional to 225,815.70, 338,723.70 and 57,348.66

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Solution

The fourth proportional to 225,815.70, 338,723.70 and 57,348.66 is: 86,023.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,815.70 : 338,723.70 = 57,348.66 : x
  2. Step 2: Convert to fraction form
    225,815.70/338,723.70 = 57,348.66/x
  3. Step 3: Cross multiply
    225,815.70x = 338,723.70 × 57,348.66
  4. Step 4: Simplify right side
    225,815.70x = 19,425,351,152.05
  5. Step 5: Solve for x
    x = 19,425,351,152.05/225,815.70
  6. Step 6: Final answer
    x = 86,023.03

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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.