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Finding the Fourth Proportional to 225,418.88, 338,244.64 and 99,147.52

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Solution

The fourth proportional to 225,418.88, 338,244.64 and 99,147.52 is: 148,772.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,418.88 : 338,244.64 = 99,147.52 : x
  2. Step 2: Convert to fraction form
    225,418.88/338,244.64 = 99,147.52/x
  3. Step 3: Cross multiply
    225,418.88x = 338,244.64 × 99,147.52
  4. Step 4: Simplify right side
    225,418.88x = 33,536,117,209.29
  5. Step 5: Solve for x
    x = 33,536,117,209.29/225,418.88
  6. Step 6: Final answer
    x = 148,772.44

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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.