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Finding the Fourth Proportional to 225,701, 311,467.43 and 125,099

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Solution

The fourth proportional to 225,701, 311,467.43 and 125,099 is: 172,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,701 : 311,467.43 = 125,099 : x
  2. Step 2: Convert to fraction form
    225,701/311,467.43 = 125,099/x
  3. Step 3: Cross multiply
    225,701x = 311,467.43 × 125,099
  4. Step 4: Simplify right side
    225,701x = 38,964,264,025.57
  5. Step 5: Solve for x
    x = 38,964,264,025.57/225,701
  6. Step 6: Final answer
    x = 172,636.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.