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Finding the Fourth Proportional to 225,266.44, 338,709.80 and 207,711.64

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Solution

The fourth proportional to 225,266.44, 338,709.80 and 207,711.64 is: 312,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,266.44 : 338,709.80 = 207,711.64 : x
  2. Step 2: Convert to fraction form
    225,266.44/338,709.80 = 207,711.64/x
  3. Step 3: Cross multiply
    225,266.44x = 338,709.80 × 207,711.64
  4. Step 4: Simplify right side
    225,266.44x = 70,353,968,042.07
  5. Step 5: Solve for x
    x = 70,353,968,042.07/225,266.44
  6. Step 6: Final answer
    x = 312,314.47

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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.