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Finding the Fourth Proportional to 200,568.24, 300,867.48 and 67,448.88

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Solution

The fourth proportional to 200,568.24, 300,867.48 and 67,448.88 is: 101,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,568.24 : 300,867.48 = 67,448.88 : x
  2. Step 2: Convert to fraction form
    200,568.24/300,867.48 = 67,448.88/x
  3. Step 3: Cross multiply
    200,568.24x = 300,867.48 × 67,448.88
  4. Step 4: Simplify right side
    200,568.24x = 20,293,174,554.42
  5. Step 5: Solve for x
    x = 20,293,174,554.42/200,568.24
  6. Step 6: Final answer
    x = 101,178.40

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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.