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Finding the Fourth Proportional to 225,557.61, 338,367.51 and 75,809.52

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Solution

The fourth proportional to 225,557.61, 338,367.51 and 75,809.52 is: 113,724.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,557.61 : 338,367.51 = 75,809.52 : x
  2. Step 2: Convert to fraction form
    225,557.61/338,367.51 = 75,809.52/x
  3. Step 3: Cross multiply
    225,557.61x = 338,367.51 × 75,809.52
  4. Step 4: Simplify right side
    225,557.61x = 25,651,478,516.70
  5. Step 5: Solve for x
    x = 25,651,478,516.70/225,557.61
  6. Step 6: Final answer
    x = 113,724.73

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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.