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Finding the Fourth Proportional to 225,489.72, 338,283.05 and 65,568.43

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Solution

The fourth proportional to 225,489.72, 338,283.05 and 65,568.43 is: 98,366.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,489.72 : 338,283.05 = 65,568.43 : x
  2. Step 2: Convert to fraction form
    225,489.72/338,283.05 = 65,568.43/x
  3. Step 3: Cross multiply
    225,489.72x = 338,283.05 × 65,568.43
  4. Step 4: Simplify right side
    225,489.72x = 22,180,688,156.27
  5. Step 5: Solve for x
    x = 22,180,688,156.27/225,489.72
  6. Step 6: Final answer
    x = 98,366.74

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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.