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Finding the Fourth Proportional to 225,492.54, 338,254.59 and 90,556.61

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Solution

The fourth proportional to 225,492.54, 338,254.59 and 90,556.61 is: 135,841.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,492.54 : 338,254.59 = 90,556.61 : x
  2. Step 2: Convert to fraction form
    225,492.54/338,254.59 = 90,556.61/x
  3. Step 3: Cross multiply
    225,492.54x = 338,254.59 × 90,556.61
  4. Step 4: Simplify right side
    225,492.54x = 30,631,187,296.07
  5. Step 5: Solve for x
    x = 30,631,187,296.07/225,492.54
  6. Step 6: Final answer
    x = 135,841.24

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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.